Added support for config.resource in dev mode
handling quoted charset
Pulled play-cache out of play-core

* Also fixed #1012, renamed ehcache.xml to ehcache-default.xml, and made this a
  fallback, to prevent classpath ordering issues
Updated contributing links to cache source code
Added play-cache dependency to documentation
 #1248 Fix thread pool regression
Merge pull request #984 from nraychaudhuri/984_config_resource

[2.1.1] config.resource system property ignored
Merge pull request #924 from nraychaudhuri/924_contenttype

Should work with Content-Type header like: text/xml; charset="utf-8"
Merge pull request #993 from jroper/ehcache-refactor

Pull cache out of play core
Merge pull request #1248 from jroper/1248-thread-pools

Fix thread pools regression
[#855] Honor q value for accept languages, and allow language without country to match language with country
Function.unlift converts A => Option[B] to PF[A,B], so use it
Fix 'play' command when building from source after organisation change.
Improved language handling

Fixes #820 - matching country should be case insensitive
Fixes #1229 - q value sorting should be stable on order in request
header
Merge pull request #1251 from alexanderjarvis/master

Fix 'play' command when building from source after organisation change.
Merge pull request #820 from jroper/messages-matching

i18n lang should ignore uppercase/lowercase
 #1152 Fixed 100 continue support
Merge pull request #1152 from jroper/1152-100

Fix 100-continue support