Merge pull request #373 from erikrozendaal/bindable-uuid

Path and query string bindables for java.util.UUID.
SimpleDateFormat is not ThreadSafe
add return types to binder implicit methods
[lh 448 ] allow using application-logger.xml as an alternative logger.xml
in order to avoid the potential classloader resource loading conflicts between system and user supplied logger.xml, play now checks for application-logger.xml first
adding controllers.ExternalAssets

- this new asset serving controller helps to deal with situations
where one'd need to use a ton of asset files during development (for example: while using unminified java script frameworks and widgets)

- my local test is not included due to the fragile nature of this feature
merge Fixing #537, Java action composition and AsyncResults doesn't work
[lh 511] [fixes #315] adding a cookie twice to a result doesn't override the old cookie
Fixing bug in capturing the context
[#578] Fix UserInfo.id in Java OpenID
switch controllers.Assets date handling to Joda Time

in order to avoid creating expensive SimpleDateFormat instances as well as running into potential race condition controllers.Assets object is now using
using joda time under the hood (which is both immutable and thread-safe)
add MIMA support

in order to provide API incompability reports between releases in the future, now MIMA(Typesafe's migration manager tool) is configured for play, play-templates, anorm, play-test sbt projects in `framework/project/Build.scala`.

one can generate the report via `mima-report-binary-issues` sbt command
Merge branch 'master' of github.com:playframework/Play20
Merge branch 'Anorm_alias_fix2' of https://github.com/jto/Play20 into jto-Anorm_alias_fix2
Merge qualified name & alias in the same ColumnName data structure.
fix grouped to include last chunk and pass it to the folder iteratee
fixes EnumerateesSpec for grouped
[#573] Fall back to less specific locale for missing keys
Added a default value feature on Forms
Removed empty lines and fixed eol at the end of the file
upgrading closure compiler