Fix PyLint C0103 on `salt.renderers.stateconf` + PEP8. Refs #1775.
Fix PyLint C0103 on `salt.renderers.yaml` + PEP8 + Minor logic fix. Refs #1775.
Fix PyLint C0103 on `salt.fileserver.gitfs`. Refs #1775.
Fix PyLint C0103 on `salt.fileserver.roots`. Refs #1775.
Fix PyLint C0103 on `salt.fileserver` + PEP8[ Sorry @thatch45 :) ]. Refs #1775.
Fix PyLint C0103 on `salt.states.host`. Refs #1775.
Fix PyLint C0103 on `salt.states.gem`. Refs #1775.
Fix PyLint C0103 on `salt.states.file` + PEP8 + Indentation Fixes. Refs #1775.
Remove color from layman.list_local output
Fix PyLint C0103 on `salt.states.cmd`. Refs #1775.
Fix PyLint C0103 on `salt.states.cron`. Refs #1775.
Fix PyLint C0103 on `salt.states.stateconf`. Refs #1775.
Fix PyLint C0103 on `salt.states.user`. Refs #1775.
Fix PyLint C0103 on `salt.states.module`. Refs #1775.
Fix PyLint C0103 on `salt.states.virtualenv` + PEP8 + Indentation fixes. Refs #1775.
More PyLint C0103 on `salt.log`. Refs #1775.
More PyLint C0103 on `salt.modules.cassandra`. Refs #1775.
Return list of installed overlays for layman.list_local
Fixed splitting output too much in layman.list_local
Return list of overlays for layman.add and layman.delete

Calling layman.add will now return the list of added overlays
and layman.delete will return the list of removed overlays