JERSEY-1276: Content-Type application/ set in post request throws java.lang.IllegalArgumentException: Error parsing media type

 - fixed servlet case (reading form params in WebComponent) - migrated from 2.x
 - added integration test for servlet case (checking that HTTP 400 is returned)

Change-Id: I100ba1b74be32ffb656923c257fb51e11d334dc3
JERSEY-1612: Added test for "PROPERTY_FOLLOW_REDIRECTS does not work for HEAD"
	- cannot reproduce, verification test added

Change-Id: I397eed252eae6b3f7f643b41cac19303cfa04a2b
Merge "JERSEY-1276: Content-Type application/ set in post request throws java.lang.IllegalArgumentException: Error parsing media type"
Merge "JERSEY-1612: Added test for "PROPERTY_FOLLOW_REDIRECTS does not work for HEAD" 	- cannot reproduce, verification test added"