* Added a custom 'mkdir' function which makes parents and doesn't fail on
existence
* Added output for 'SKIP' messages (it did not indicate WHY it was skipped)
* Added the ability to generate DB packages in the sync dir (not the cache dir)
for testing downloading. (self.cachepkgs = False)
* Added pmtest.path for the full path to the package file
through to pacman, whereas --verbose affects the pactest output - this cleans
up the standard test output significantly
* sorted tests a bit better, sectioning off failed tests AFTER successful tests,
to make it easier to see what failed at a glance
* added a 'testname' member to pmtest, which strips path info (cleaner output)
