Fixed ugly inheritance issue with Issue and FileIssue.

Added Filter unit tests.

libpit/project.properties

@@ -1,9 +1,9 @@
-#Sat Feb 20 22:25:08 CST 2010
+#Sun Feb 21 15:42:19 CST 2010
 build.dir=build
 src.dir=src
 lib.shared.dir=../shared-libs
 test.dir=test
-build.number=53
+build.number=64
 expected.application.version=1.1.2
 lib.dir=lib
 release.dir=release