Reinstating disabled WebSocket test

Fixes #2729
simple mention of port in JDBC pool configuration
Merge pull request #3348 from peterbecich/master

SettingsJDBC suggestion; non-standard port for MySQL and Postgres URLs
Merge pull request #2729 from jroper/2729-reinstating-disabled-test

Re-enable WebSocketSpec test
Handle null ups and downs in evolutions gracefully
Mention session.maxAge in the documentation

There is a way to set the maximum age of the session cookie but the documentation did not point it out.
Merge pull request #3355 from urcadox/patch-1

Mention session.maxAge in the documentation
Merge pull request #3033 from gmethvin/null_evolutions

DB evolution: Application stops working if '# --- !Downs' part does not exists or empty
Only apply filters for paths that fall within application.context
Refactor around `as` function
fixing comments that is slightly confusing
Merge pull request #3373 from enelson/master

fixing comments that is slightly confusing
update Bootstrap terminology & version

It's now simply Bootstrap, not Twitter Bootstrap.
    See http://getbootstrap.com/about/#brand
Update Bootstrap webjar references in docs to v3.2.0
Updated documentation to use new table of contents feature
Merge pull request #2542 from jroper/documentation-toc-refactor

Improve sidebar menus in documentation
Merge branch 'master' of https://github.com/cvrebert/playframework
Merge pull request #2886 from gmethvin/filter-context

Play should only apply filters on requests that fall under application.context
Add a Form body parser
Fix int to duration conversion for cache
Merge pull request #3379 from gmethvin/cache-duration

cache.get() only works for the first call