extract akka example code from scala doc
extract code from scala cache doc
fix package name
Fixed documentation for Action.async.
Update the json contraints error messages with the play defaults
Remove the validate prefix of the JSON error
Add the json api error keys, correct those containing dashes
Set Vary header when doing content negotiation based on the Accept header (#1105)
Report errors with keystores

Code for loading the keyStore can throw an exception, which was
silently ignored.  By moving it inside an existing try-catch block, the
exception is reported in the log.

Also added an integration test.
Fix broken links to wiki. Fixes #1004

  * Added back ScalaDependencyInjection to docs - which had been
    deleted from both the repository _and_ the wiki.
  * The wiki has previously been absorbed into the repository. This
    patch changes all external links to the wiki into the correct
    internal links.
Documentation: Fix typos
"Fix" incorrect references to previous Play versions

  * Fix some old versions in documentation
  * Fix an old version in a test
  * Note: These Play version numbers (and possibly others) will still
    need to be updated prior to each new release.
Documentation: Add back ommitted data that code referred to

  * This data was accidentally ommitted when converting a blog post
    into documentation.
#1239 Precision loss fixes for Json parsing
Merge pull request #1239 from jroper/1239-json-precision

JSON BigDecimal precision loss when parsing
Merge pull request #1237 from greenrd/cleanup

Various doc and string fixes
Merge pull request #1236 from bwbecker/master

Using an invalid certificate keyStore should be (at least) reported in the log rather than failing silently.
Merge pull request #1232 from julienrf/fix/1105

Set Vary header when doing content negotiation based on the Accept header (#1105)
Merge pull request #1193 from XuefengWu/extract-code-scala-cache

extract code from scala cache doc
Merge pull request #1195 from tototoshi/fix-action-async-documentation

Fixed documentation for Action.async.