Fix for https://java.net/jira/browse/JSIP-384

Allow INVITE transaction overlap with non-INVITEs.

git-svn-id: https://svn.java.net/svn/jsip~svn/trunk@2325 8e71dc83-d81e-6649-80f2-80b843a9b2be
Test for https://java.net/jira/browse/JSIP-384

Allow INVITE transaction overlap with non-INVITEs.

git-svn-id: https://svn.java.net/svn/jsip~svn/trunk@2326 8e71dc83-d81e-6649-80f2-80b843a9b2be