PIT CLI agenda sorting, FileIssue bug fixed.

* Fixed the bug in FileIssue where it would append a blank line to the body of
  an issue every time it wrote the issue to the file. Fixed by making the
  parser consume a line break before the property section.
* Fixed PIT CLI -D option sorting of issues so that it will sort issues by
  priority, then due date.

libpit/project.properties

@@ -1,11 +1,11 @@
-#Mon, 19 Dec 2011 16:07:10 -0600
+#Mon, 19 Dec 2011 16:21:52 -0600
 #Sat Apr 24 17:08:00 CDT 2010
 build.dir=build
 src.dir=src
 lib.shared.dir=../shared-libs
 test.dir=test
-build.number=3
-version=3.3.0
+build.number=1
+version=3.3.1
 name=libpit
 lib.dir=lib
 lib.local=true