Fixed inifinite recursion in TestBrowser.submit

Fixes #1707
Fixed 505 body sending bug

Ensured that the original body, but rather, an error message body is
sent when a chunked result is returned for a HTTP/1.0 request.
Added missing import in sample code

See: https://github.com/playframework/playframework/issues/1617
Merge pull request #1707 from jroper/1707-testbrowser-submit

[2.2.0-RC2] Error with TestBrowser/Selenium/Fluentlenium
Merge pull request #1778 from jroper/http10-chunked

Fixed 505 body sending bug
Fix incorrect method signature by extracting all the code.
Merge pull request #1792 from clemp6r/patch-1

Added missing import in sample code
Merge pull request #1803 from wsargent/doc-JavaActionsComposition

Fix incorrect method signature by extracting all the code.
Merge remote-tracking branch: upstream/master