Include Travis-CI in the hacking doc, it makes our life easier.
Merge pull request #3132 from s0undt3ch/develop

Include Travis-CI in the hacking doc, it makes our life easier.
Add the ability to parse a whole directory full of repos
Merge pull request #3138 from techhat/repo

Add the ability to parse a whole directory full of repos
Fix #3137
Added state for layman.

Adds the ability to ensure overlays are added or deleted via layman
whack-a-mole
Merge pull request #3139 from seanchannel/develop

whack-a-mole
Console logger now writes to `sys.stderr`. Make PyLint happier. Fixes #3135.
Chaned layman state functions to conform to other states.

Changed added to present and deleted to absent
Added virtual to layman state
Add some more documentation to the `BufferedReader`. Refs #3127.
Minor doc indentation fix.
Added code for test interface to layman state
Added docs for layman state
Replace succesful with successful (reported by lintian)
Fix mdadm module: do not return False on Linux kernel
Add the ability to modify or create repos
Merge pull request #3144 from havan/fix-mdadm-module

Fix mdadm module: do not return False on Linux kernel
Merge pull request #3145 from techhat/repo

Add the ability to modify or create repos