Jira UIMA-473: update version number to 2.2-incubating.
Jira UIMA-473: update version number to 2.2-incubating.

https://issues.apache.org/jira/browse/UIMA-473


git-svn-id: 67f5ad311a3d1220c16f120748b212c18fe1c257@552717 13f79535-47bb-0310-9956-ffa450edef68

apache/uima-uimaj,apache/uima-uimaj,apache/uima-uimaj,apache/uima-uimaj,apache/uima-uimaj