Merge pull request #334 from patriot1burke/master

validation refactoring
Merge pull request #335 from patriot1burke/master

assembly
Merge pull request #337 from patriot1burke/master

bug fixes
Range and Content-Range headers must start with "bytes"
Merge pull request #338 from wbowling/content-range

Range and Content-Range headers must start with "bytes"
Timeout error cases distinguished (with status code 503, "server is
busy") from processing errors (500) in asynchronous dispatcher
Asynch dispatch timeout cases distinguished (with status code 503) from
processing errors (500)
Merge branch 'master' of https://github.com/szdeak/Resteasy

Conflicts:
	jaxrs/resteasy-jaxrs/src/main/java/org/jboss/resteasy/core/AsynchronousDispatcher.java
Fix for https://issues.jboss.org/browse/RESTEASY-864
Check value for null before trying to convert to string
Addition of HttpUrlConnection engine for resteasy-client
Added some comments and code cleanup
Merge pull request #340 from szdeak/master

Asynch dispatch timeout cases distinguished (with status code 503) from processing errors
Merge pull request #342 from Arvoreen/master

Fix for RESTEASY-864
Merge pull request #343 from alexogar/master

Adding URLConnectionEngine (RESTEASY-904)
Merge remote-tracking branch 'upstream/master'