Small enhancements to libpit to facilitate pit-swing.

Added delete() and createNewProject(String) to Project class.
Added nicer toString() method to Category enum.

libpit/project.properties

@@ -1,10 +1,10 @@
-#Mon Feb 22 07:08:09 CST 2010
+#Wed Feb 24 03:03:11 CST 2010
 build.dir=build
 src.dir=src
 lib.shared.dir=../shared-libs
 test.dir=test
-build.number=2
-expected.application.version=1.1.4
+build.number=4
+expected.application.version=1.1.5
 lib.dir=lib
 release.dir=release
 release.jar=pit-${application.version}.jar