some versions of CVS includes timezone in cvs log, so modified to parse them....

some versions of CVS includes timezone in cvs log, so modified to parse them. See http://ximbiot.com/cvs/wiki/index.php?title=CVS_FAQ#Date_not_available_when_in_Eclipse_3.0.1_when_comparing_with_revision


git-svn-id: https://hudson.dev.java.net/svn/hudson/trunk/hudson/main@1386 71c3de6d-444a-0410-be80-ed276b4c234a