some refactoring on the python side of things...

Signed-off-by: Alex A. Naanou <alex.nanou@gmail.com>
almost done with gen3 implementation of buildcache (buildcache2.py)...

Signed-off-by: Alex A. Naanou <alex.nanou@gmail.com>
made sure everything is compatible, moved to $.getJSON(...) for reading json files instead of a CEF extension...

Signed-off-by: Alex A. Naanou <alex.nanou@gmail.com>