Bump capistrano-rails from 1.4.0 to 1.6.2

Gemfile.lock

@@ -217,7 +217,7 @@ GEM
       activerecord (>= 3.0)
     addressable (2.7.0)
       public_suffix (>= 2.0.2, < 5.0)
-    airbrussh (1.3.1)
+    airbrussh (1.4.0)
       sshkit (>= 1.6.1, != 1.7.0)
     api-pagination (4.8.2)
     arel (9.0.0)
@@ -294,13 +294,13 @@ GEM
       i18n
       rake (>= 10.0.0)
       sshkit (>= 1.9.0)
-    capistrano-bundler (1.5.0)
+    capistrano-bundler (2.0.1)
       capistrano (~> 3.1)
     capistrano-passenger (0.2.0)
       capistrano (~> 3.0)
-    capistrano-rails (1.4.0)
+    capistrano-rails (1.6.2)
       capistrano (~> 3.1)
-      capistrano-bundler (~> 1.1)
+      capistrano-bundler (>= 1.1, < 3)
     capistrano-resque (0.2.3)
       capistrano
       resque
@@ -331,7 +331,7 @@ GEM
       coffee-script-source
       execjs
     coffee-script-source (1.12.2)
-    concurrent-ruby (1.1.8)
+    concurrent-ruby (1.1.9)
     config (1.7.1)
       activesupport (>= 3.0)
       deep_merge (~> 1.2.1)
@@ -485,7 +485,7 @@ GEM
       hydra-access-controls (= 10.6.2)
       hydra-core (= 10.6.2)
       rails (>= 3.2.6)
-    i18n (1.8.10)
+    i18n (1.10.0)
       concurrent-ruby (~> 1.0)
     iconv (1.0.8)
     iiif_manifest (0.6.0)
@@ -577,9 +577,9 @@ GEM
     mysql2 (0.5.2)
     net-http-digest_auth (1.4.1)
     net-ldap (0.16.1)
-    net-scp (2.0.0)
-      net-ssh (>= 2.6.5, < 6.0.0)
-    net-ssh (5.2.0)
+    net-scp (3.0.0)
+      net-ssh (>= 2.6.5, < 7.0.0)
+    net-ssh (6.1.0)
     netrc (0.11.0)
     nio4r (2.5.7)
     noid (0.9.0)
@@ -668,7 +668,7 @@ GEM
       rake (>= 0.8.7)
       thor (>= 0.19.0, < 2.0)
     rainbow (3.0.0)
-    rake (13.0.3)
+    rake (13.0.6)
     rb-fsevent (0.10.3)
     rb-inotify (0.10.0)
       ffi (~> 1.0)
@@ -871,7 +871,7 @@ GEM
       activesupport (>= 4.0)
       sprockets (>= 3.0.0)
     sqlite3 (1.4.1)
-    sshkit (1.18.2)
+    sshkit (1.21.2)
       net-scp (>= 1.1.2)
       net-ssh (>= 2.8.0)
     stomp (1.4.8)