Bump acorn from 5.7.3 to 5.7.4

Bumps [acorn](https://github.com/acornjs/acorn) from 5.7.3 to 5.7.4.
- [Release notes](https://github.com/acornjs/acorn/releases)
- [Commits](acornjs/acorn@5.7.3...5.7.4)

Signed-off-by: dependabot[bot] <support@github.com>

yarn.lock

@@ -923,6 +923,13 @@
   dependencies:
     regenerator-runtime "^0.13.2"
 
+"@babel/runtime@^7.4.2", "@babel/runtime@^7.5.5":
+  version "7.8.7"
+  resolved "https://registry.yarnpkg.com/@babel/runtime/-/runtime-7.8.7.tgz#8fefce9802db54881ba59f90bb28719b4996324d"
+  integrity sha512-+AATMUFppJDw6aiR5NVPHqIQBlV/Pj8wY/EZH+lmvRdUo9xBaz/rF3alAwFJQavvKfeOlPE7oaaDHVbcySbCsg==
+  dependencies:
+    regenerator-runtime "^0.13.4"
+
 "@babel/runtime@^7.5.1", "@babel/runtime@^7.6.2", "@babel/runtime@^7.6.3", "@babel/runtime@^7.7.2", "@babel/runtime@^7.7.6":
   version "7.8.3"
   resolved "https://registry.yarnpkg.com/@babel/runtime/-/runtime-7.8.3.tgz#0811944f73a6c926bb2ad35e918dcc1bfab279f1"
@@ -1207,6 +1214,16 @@
   resolved "https://registry.yarnpkg.com/@nodelib/fs.stat/-/fs.stat-1.1.3.tgz#2b5a3ab3f918cca48a8c754c08168e3f03eba61b"
   integrity sha512-shAmDyaQC4H92APFoIaVDHCx5bStIocgvbwQyxPRrbUY20V1EYTbSDchWbuwlMG3V17cprZhA6+78JfB+3DTPw==
 
+"@restart/context@^2.1.4":
+  version "2.1.4"
+  resolved "https://registry.yarnpkg.com/@restart/context/-/context-2.1.4.tgz#a99d87c299a34c28bd85bb489cb07bfd23149c02"
+  integrity sha512-INJYZQJP7g+IoDUh/475NlGiTeMfwTXUEr3tmRneckHIxNolGOW9CTq83S8cxq0CgJwwcMzMJFchxvlwe7Rk8Q==
+
+"@restart/hooks@^0.3.11", "@restart/hooks@^0.3.12":
+  version "0.3.21"
+  resolved "https://registry.yarnpkg.com/@restart/hooks/-/hooks-0.3.21.tgz#5264d12019ffb844dc1fc44d55517ded7b580ee2"
+  integrity sha512-Wcu3CFJV+iiqPEIoPVx3/CYnZBRgPeRABo6bLJByRH9ptJXyObn7WYPG7Rv0cg3+55bqcBbG0xEfovzwE2PNXg==
+
 "@sheerun/mutationobserver-shim@^0.3.2":
   version "0.3.2"
   resolved "https://registry.yarnpkg.com/@sheerun/mutationobserver-shim/-/mutationobserver-shim-0.3.2.tgz#8013f2af54a2b7d735f71560ff360d3a8176a87b"
@@ -1473,6 +1490,14 @@
     "@types/prop-types" "*"
     csstype "^2.2.0"
 
+"@types/react@^16.8.23", "@types/react@^16.9.11":
+  version "16.9.23"
+  resolved "https://registry.yarnpkg.com/@types/react/-/react-16.9.23.tgz#1a66c6d468ba11a8943ad958a8cb3e737568271c"
+  integrity sha512-SsGVT4E7L2wLN3tPYLiF20hmZTPGuzaayVunfgXzUn1x4uHVsKH6QDJQ/TdpHqwsTLd4CwrmQ2vOgxN7gE24gw==
+  dependencies:
+    "@types/prop-types" "*"
+    csstype "^2.2.0"
+
 "@types/stack-utils@^1.0.1":
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/@types/stack-utils/-/stack-utils-1.0.1.tgz#0a851d3bd96498fa25c33ab7278ed3bd65f06c3e"
@@ -1741,9 +1766,9 @@ acorn-walk@^6.0.1:
   integrity sha512-7evsyfH1cLOCdAzZAd43Cic04yKydNx0cF+7tiA19p1XnLLPU4dpCQOqpjqwokFe//vS0QqfqqjCS2JkiIs0cA==
 
 acorn@^5.5.3:
-  version "5.7.3"
-  resolved "https://registry.yarnpkg.com/acorn/-/acorn-5.7.3.tgz#67aa231bf8812974b85235a96771eb6bd07ea279"
-  integrity sha512-T/zvzYRfbVojPWahDsE5evJdHb3oJoQfFbsrKM7w5Zcs++Tr257tia3BmMP8XYVjp1S9RZXQMh7gao96BlqZOw==
+  version "5.7.4"
+  resolved "https://registry.yarnpkg.com/acorn/-/acorn-5.7.4.tgz#3e8d8a9947d0599a1796d10225d7432f4a4acf5e"
+  integrity sha512-1D++VG7BhrtvQpNbBzovKNc1FLGGEE/oGe7b9xJm/RFHMBeUaUGpluV9RLjZa47YFdPcDAenEYuq9pQPcMdLJg==
 
 acorn@^6.0.1, acorn@^6.0.4, acorn@^6.2.1:
   version "6.4.0"
@@ -2701,6 +2726,11 @@ class-utils@^0.3.5:
     isobject "^3.0.0"
     static-extend "^0.1.1"
 
+classnames@^2.2.6:
+  version "2.2.6"
+  resolved "https://registry.yarnpkg.com/classnames/-/classnames-2.2.6.tgz#43935bffdd291f326dad0a205309b38d00f650ce"
+  integrity sha512-JR/iSQOSt+LQIWwrwEzJ9uk0xfN3mTVYMwt1Ir5mUcSN6pU+V4zQFFaJsclJbPuAUQH+yfWef6tm7l1quW3C8Q==
+
 clean-css@4.2.x:
   version "4.2.1"
   resolved "https://registry.yarnpkg.com/clean-css/-/clean-css-4.2.1.tgz#2d411ef76b8569b6d0c84068dabe85b0aa5e5c17"
@@ -3321,6 +3351,11 @@ csstype@^2.2.0:
   resolved "https://registry.yarnpkg.com/csstype/-/csstype-2.6.8.tgz#0fb6fc2417ffd2816a418c9336da74d7f07db431"
   integrity sha512-msVS9qTuMT5zwAGCVm4mxfrZ18BNc6Csd0oJAtiFMZ1FAx1CCvy2+5MDmYoix63LM/6NDbNtodCiGYGmFgO0dA==
 
+csstype@^2.6.7:
+  version "2.6.9"
+  resolved "https://registry.yarnpkg.com/csstype/-/csstype-2.6.9.tgz#05141d0cd557a56b8891394c1911c40c8a98d098"
+  integrity sha512-xz39Sb4+OaTsULgUERcCk+TJj8ylkL4aSVDQiX/ksxbELSqwkgt4d4RD7fovIdgJGSuNYqwZEiVjYY5l0ask+Q==
+
 cyclist@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/cyclist/-/cyclist-1.0.1.tgz#596e9698fd0c80e12038c2b82d6eb1b35b6224d9"
@@ -3580,6 +3615,14 @@ dom-converter@^0.2:
   dependencies:
     utila "~0.4"
 
+dom-helpers@^5.0.1, dom-helpers@^5.1.0, dom-helpers@^5.1.2:
+  version "5.1.3"
+  resolved "https://registry.yarnpkg.com/dom-helpers/-/dom-helpers-5.1.3.tgz#7233248eb3a2d1f74aafca31e52c5299cc8ce821"
+  integrity sha512-nZD1OtwfWGRBWlpANxacBEZrEuLa16o1nh7YopFWeoF68Zt8GGEmzHu6Xv4F3XaFIC+YXtTLrzgqKxFgLEe4jw==
+  dependencies:
+    "@babel/runtime" "^7.6.3"
+    csstype "^2.6.7"
+
 dom-serializer@0:
   version "0.2.2"
   resolved "https://registry.yarnpkg.com/dom-serializer/-/dom-serializer-0.2.2.tgz#1afb81f533717175d478655debc5e332d9f9bb51"
@@ -7529,6 +7572,11 @@ pnp-webpack-plugin@1.5.0:
   dependencies:
     ts-pnp "^1.1.2"
 
+popper.js@^1.15.0, popper.js@^1.16.0:
+  version "1.16.1"
+  resolved "https://registry.yarnpkg.com/popper.js/-/popper.js-1.16.1.tgz#2a223cb3dc7b6213d740e40372be40de43e65b1b"
+  integrity sha512-Wb4p1J4zyFTbM+u6WuO4XstYx4Ky9Cewe4DWrel7B0w6VVICvPwdOpotjzcf6eD8TsckVnIMNONQyPIUFOUbCQ==
+
 portfinder@^1.0.25:
   version "1.0.25"
   resolved "https://registry.yarnpkg.com/portfinder/-/portfinder-1.0.25.tgz#254fd337ffba869f4b9d37edc298059cb4d35eca"
@@ -8278,6 +8326,14 @@ prompts@^2.0.1:
     kleur "^3.0.3"
     sisteransi "^1.0.3"
 
+prop-types-extra@^1.1.0:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/prop-types-extra/-/prop-types-extra-1.1.1.tgz#58c3b74cbfbb95d304625975aa2f0848329a010b"
+  integrity sha512-59+AHNnHYCdiC+vMwY52WmvP5dM3QLeoumYuEyceQDi9aEhtwN9zIQ2ZNo25sMyXnbh32h+P1ezDsUpUH3JAew==
+  dependencies:
+    react-is "^16.3.2"
+    warning "^4.0.0"
+
 prop-types@^15.6.2, prop-types@^15.7.2:
   version "15.7.2"
   resolved "https://registry.yarnpkg.com/prop-types/-/prop-types-15.7.2.tgz#52c41e75b8c87e72b9d9360e0206b99dcbffa6c5"
@@ -8454,6 +8510,26 @@ react-app-polyfill@^1.0.5:
     regenerator-runtime "^0.13.3"
     whatwg-fetch "^3.0.0"
 
+react-bootstrap@^1.0.0-beta.16:
+  version "1.0.0-beta.17"
+  resolved "https://registry.yarnpkg.com/react-bootstrap/-/react-bootstrap-1.0.0-beta.17.tgz#09d4789633b2fb24d408fa493b4a80a496e87c82"
+  integrity sha512-7VP9doezV4rX0EcajzMvyD6ywtrLfulF3ZAev+uTx8syWQybUkccOpecUO5kPomng/bJMgK/h+44PkZ15Dv44g==
+  dependencies:
+    "@babel/runtime" "^7.4.2"
+    "@restart/context" "^2.1.4"
+    "@restart/hooks" "^0.3.11"
+    "@types/react" "^16.8.23"
+    classnames "^2.2.6"
+    dom-helpers "^5.1.2"
+    invariant "^2.2.4"
+    popper.js "^1.16.0"
+    prop-types "^15.7.2"
+    prop-types-extra "^1.1.0"
+    react-overlays "^2.1.0"
+    react-transition-group "^4.0.0"
+    uncontrollable "^7.0.0"
+    warning "^4.0.3"
+
 react-dev-utils@^10.0.0:
   version "10.0.0"
   resolved "https://registry.yarnpkg.com/react-dev-utils/-/react-dev-utils-10.0.0.tgz#bd2d16426c7e4cbfed1b46fb9e2ac98ec06fcdfa"
@@ -8499,11 +8575,34 @@ react-error-overlay@^6.0.4:
   resolved "https://registry.yarnpkg.com/react-error-overlay/-/react-error-overlay-6.0.4.tgz#0d165d6d27488e660bc08e57bdabaad741366f7a"
   integrity sha512-ueZzLmHltszTshDMwyfELDq8zOA803wQ1ZuzCccXa1m57k1PxSHfflPD5W9YIiTXLs0JTLzoj6o1LuM5N6zzNA==
 
+react-is@^16.3.2:
+  version "16.13.0"
+  resolved "https://registry.yarnpkg.com/react-is/-/react-is-16.13.0.tgz#0f37c3613c34fe6b37cd7f763a0d6293ab15c527"
+  integrity sha512-GFMtL0vHkiBv9HluwNZTggSn/sCyEt9n02aM0dSAjGGyqyNlAyftYm4phPxdvCigG15JreC5biwxCgTAJZ7yAA==
+
 react-is@^16.8.1, react-is@^16.8.4:
   version "16.12.0"
   resolved "https://registry.yarnpkg.com/react-is/-/react-is-16.12.0.tgz#2cc0fe0fba742d97fd527c42a13bec4eeb06241c"
   integrity sha512-rPCkf/mWBtKc97aLL9/txD8DZdemK0vkA3JMLShjlJB3Pj3s+lpf1KaBzMfQrAmhMQB0n1cU/SUGgKKBCe837Q==
 
+react-lifecycles-compat@^3.0.4:
+  version "3.0.4"
+  resolved "https://registry.yarnpkg.com/react-lifecycles-compat/-/react-lifecycles-compat-3.0.4.tgz#4f1a273afdfc8f3488a8c516bfda78f872352362"
+  integrity sha512-fBASbA6LnOU9dOU2eW7aQ8xmYBSXUIWr+UmF9b1efZBazGNO+rcXT/icdKnYm2pTwcRylVUYwW7H1PHfLekVzA==
+
+react-overlays@^2.1.0:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/react-overlays/-/react-overlays-2.1.1.tgz#ffe2090c4a10da6b8947a1c7b1a67d0457648a0d"
+  integrity sha512-gaQJwmb8Ij2IGVt4D1HmLtl4A0mDVYxlsv/8i0dHWK7Mw0kNat6ORelbbEWzaXTK1TqMeQtJw/jraL3WOADz3w==
+  dependencies:
+    "@babel/runtime" "^7.4.5"
+    "@restart/hooks" "^0.3.12"
+    dom-helpers "^5.1.0"
+    popper.js "^1.15.0"
+    prop-types "^15.7.2"
+    uncontrollable "^7.0.0"
+    warning "^4.0.3"
+
 react-scripts@3.3.0:
   version "3.3.0"
   resolved "https://registry.yarnpkg.com/react-scripts/-/react-scripts-3.3.0.tgz#f26a21f208f20bd04770f43e50b5bbc151920c2a"
@@ -8564,6 +8663,16 @@ react-scripts@3.3.0:
   optionalDependencies:
     fsevents "2.1.2"
 
+react-transition-group@^4.0.0:
+  version "4.3.0"
+  resolved "https://registry.yarnpkg.com/react-transition-group/-/react-transition-group-4.3.0.tgz#fea832e386cf8796c58b61874a3319704f5ce683"
+  integrity sha512-1qRV1ZuVSdxPlPf4O8t7inxUGpdyO5zG9IoNfJxSO0ImU2A1YWkEQvFPuIPZmMLkg5hYs7vv5mMOyfgSkvAwvw==
+  dependencies:
+    "@babel/runtime" "^7.5.5"
+    dom-helpers "^5.0.1"
+    loose-envify "^1.4.0"
+    prop-types "^15.6.2"
+
 react@^16.12.0:
   version "16.12.0"
   resolved "https://registry.yarnpkg.com/react/-/react-16.12.0.tgz#0c0a9c6a142429e3614834d5a778e18aa78a0b83"
@@ -8682,6 +8791,11 @@ regenerator-runtime@^0.13.2, regenerator-runtime@^0.13.3:
   resolved "https://registry.yarnpkg.com/regenerator-runtime/-/regenerator-runtime-0.13.3.tgz#7cf6a77d8f5c6f60eb73c5fc1955b2ceb01e6bf5"
   integrity sha512-naKIZz2GQ8JWh///G7L3X6LaQUAMp2lvb1rvwwsURe/VXwD6VMfr+/1NuNw3ag8v2kY1aQ/go5SNn79O9JU7yw==
 
+regenerator-runtime@^0.13.4:
+  version "0.13.5"
+  resolved "https://registry.yarnpkg.com/regenerator-runtime/-/regenerator-runtime-0.13.5.tgz#d878a1d094b4306d10b9096484b33ebd55e26697"
+  integrity sha512-ZS5w8CpKFinUzOwW3c83oPeVXoNsrLsaCoLtJvAClH135j/R77RuymhiSErhm2lKcwSCIpmvIWSbDkIfAqKQlA==
+
 regenerator-transform@^0.14.0:
   version "0.14.1"
   resolved "https://registry.yarnpkg.com/regenerator-transform/-/regenerator-transform-0.14.1.tgz#3b2fce4e1ab7732c08f665dfdb314749c7ddd2fb"
@@ -10018,6 +10132,16 @@ uglify-js@^3.1.4:
     commander "~2.20.3"
     source-map "~0.6.1"
 
+uncontrollable@^7.0.0:
+  version "7.1.1"
+  resolved "https://registry.yarnpkg.com/uncontrollable/-/uncontrollable-7.1.1.tgz#f67fed3ef93637126571809746323a9db815d556"
+  integrity sha512-EcPYhot3uWTS3w00R32R2+vS8Vr53tttrvMj/yA1uYRhf8hbTG2GyugGqWDY0qIskxn0uTTojVd6wPYW9ZEf8Q==
+  dependencies:
+    "@babel/runtime" "^7.6.3"
+    "@types/react" "^16.9.11"
+    invariant "^2.2.4"
+    react-lifecycles-compat "^3.0.4"
+
 unicode-canonical-property-names-ecmascript@^1.0.4:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/unicode-canonical-property-names-ecmascript/-/unicode-canonical-property-names-ecmascript-1.0.4.tgz#2619800c4c825800efdd8343af7dd9933cbe2818"
@@ -10257,6 +10381,13 @@ walker@^1.0.7, walker@~1.0.5:
   dependencies:
     makeerror "1.0.x"
 
+warning@^4.0.0, warning@^4.0.3:
+  version "4.0.3"
+  resolved "https://registry.yarnpkg.com/warning/-/warning-4.0.3.tgz#16e9e077eb8a86d6af7d64aa1e05fd85b4678ca3"
+  integrity sha512-rpJyN222KWIvHJ/F53XSZv0Zl/accqHR8et1kpaMTD/fLCRxtV8iX8czMzY7sVZupTI3zcUTg8eycS2kNF9l6w==
+  dependencies:
+    loose-envify "^1.0.0"
+
 watchpack@^1.6.0:
   version "1.6.0"
   resolved "https://registry.yarnpkg.com/watchpack/-/watchpack-1.6.0.tgz#4bc12c2ebe8aa277a71f1d3f14d685c7b446cd00"