[UIMA-4083][UIMA-4082] fix serialization issue with FSs that are both ref'd and indexed, and add tests.  Change serialization format for @views to use the ViewName as the key, instead of the corresponding Sofa Xmi Id. 

git-svn-id: https://svn.apache.org/repos/asf/uima/uimaj/trunk@1636198 13f79535-47bb-0310-9956-ffa450edef68