provide an option to override sbt.ivy.home
Documented JVM settings in forked Java test processes.

This update is in response to this thread: https://groups.google.com/forum/#!msg/play-framework/SqXk7EQgMwk/DxJaWMVlzcoJ
Changed Typesafe copyright from 2012 to 2013
Merge pull request #782 from seantbrady/play21-documentation

Documented JVM settings in forked Java test processes.
Merge pull request #783 from xaoc3dgraph/changed-copyright

Changed Typesafe copyright from 2012 to 2013
Documented settings to enable Play's field access rewriting in test.
Merge pull request #784 from seantbrady/play21-documentation

Documented settings to enable Play's field access rewriting in test.
Update Modules.md

added Apache JackRabbit Plugin
Change PlayProject to play.Project
Added ClojureScript plugin to module documentation
Merge pull request #788 from liutaon/master

doc fix
Merge pull request #779 from nraychaudhuri/cleanup_sbt_boot_properties

provide an option to override sbt.ivy.home
Merge pull request #790 from jmhofer/master

Add ClojureScript plugin to the list of modules in the documentation.
Merge pull request #785 from sgougi/master

Update documentation/manual/Modules.md