Fix type in examples.
allow zpg to work if git not found.
Remove netbotz renderer.
No longer register skins dirs.
Only run rebuild_device_relations, if there are new device relations that have been created.
Add option to disable git.
fix type in json examples.
Ignore Cheetah warnings.
Do not write templates if skip templates turned on.
Better json error messages.
Fix pep8 errors and a pdb.