Consume all enumerators created by gzip filter

This fixes an issue with New Relic monitoring and GzipFilter.
The New Relic monitoring tracks all promises to completion,
and an unused empty enumerator caused problems with this.
Fixed a bug in documentation comments
Merge pull request #2363 from pvlugter/gzip-filter-enumerators-2.2

Consume all enumerators created by gzip filter (backport 2.2.x)
Fix example code on scala json
Fix example code on scala json
More robust updates of Stamps in Analysis object.

Preserve the type of an existing Stamp object that we're about to update.
This way we respect the the type of Stamp object incremental compiler
chooses to use to track produced class files.

This fixes a regression of incremental compilation with sbt 0.13.0 where
incremental compiler uses Exists stamp for tracking produced files and
we would override them with LastModified stamps.

With this commit, all sbt 0.13.x versions should be supported.
Update Installing.md

While installing play on my ubuntu system I noticed that you also have to set the rights for the build script insinde the framework folder.
Update Repositories.md
Fix finding of the Scala library to work on Windows and to work with SBT
Merge pull request #2383 from drdamour/patch-3

Update Repositories.md to fix snapshot repo info
Merge pull request #2373 from buster84/2.2.x

Fix example code on scala json
Merge pull request #2378 from MeiSign/patch-1

Update Installing.md
EBean enhanced classes should also update analysis

Ensured when ebean enhances classes, that these also update the
analysis.
Suggest using Scala class in ScalaTemplates.md
Update Modules.md

Add Silhouette module
Merge pull request #2419 from akkie/patch-1

Update Modules.md
Add default to ScalaForms.md
Merge pull request #2442 from wsargent/fix-2319

Add information about default values to ScalaForms.md
Merge from master to 2.2.x for Scala JSON doc rewrite (issue 2395)
just fix a typo