Finished libpit 1.1.0. Added change operations (priority, category, etc)

Began unit testing of libpit.
Made most of the changes to pit-cli needed to incorporate the new libpit
features.

issues/libpit/0011t6.rst

@@ -0,0 +1,5 @@
+Add Apache Ivy to the build process.
+====================================
+
+Add the neccesary structure to leverage an existing Ivy repository and to
+generate artifacts for a local repository.