Reload sbt on travis install and fix scala version parsing

Author: J0B10

.scripts/update-docs.sh

@@ -1,6 +1,6 @@
 #!/bin/bash
 set -ev
-SCALA_MAJOR=$(echo $TRAVIS_SCALA_VERSION | grep '^\d+\.\d+' -o)
+SCALA_MAJOR=$(echo $TRAVIS_SCALA_VERSION | egrep '^[0-9]+\.[0-9]+' -o)
 
 # Update the java-/scaladocs on https://github.com/codeoverflow-org/chatoverflow-gh-pages
 

.travis.yml

@@ -13,6 +13,7 @@ cache:
     - $HOME/.sbt
 before_install:
   - git clone https://github.com/codeoverflow-org/chatoverflow-api --branch master --single-branch --depth 1 api
+  - sbt ++$TRAVIS_SCALA_VERSION reload
 script:
   - sbt ++$TRAVIS_SCALA_VERSION -Dfile.encoding=UTF8 doc
   - chmod +x .scripts/update-docs.sh