reposconf.py WIP: creates write() function
reposconf.py WIP: adds add() function
reposconf.py WIP: adds delete() function
reposconf.py WIP: adds update() function
makeconf.py: renamed class to ConfigHandler
config.py: Adds auto_sync, conf_type, and require_repoconfig

Three new options have been added to give users repo config
configurability.
repoconfmanager.py WIP: Creates initial RepoConfManager class

This class will provide a wrapper for all config types and will
also allow for custom config plugins as well.
repoconfmanager WIP: adds dict of supported modules
repoconfigmanager.py WIP: adds conf_type checks

Checks are made to assure conf_types exists and is in the correct
format that RepoConfManager expects it to be.
repoconfmanager.py WIP: adds add() function

By checking the conf_types and associating them with a dict has each
key as the conf_type and the value is a tuple of the corresponding
class and string of the module name.
repoconfmanager.py WIP: adds delete() function
repoconfmanager.py WIP: adds update() function

Also corrects function indentation and logic to check
for the require_repoconf variable.
makeconf.py: adds stub update() function
db.py: Incorporates RepoConfManager class
config.py: Adds proxies() function

Since both remotedb.py and tar.py both made use of the same code
that determined available proxies, the code has been moved to a
function in config.py and both files have been changed to make use
of this function.
utils.py: adds verify_overlay_src() function
api.py: incorporates verify_overlay_src() function
api.py: adds readd_repos() function
api.py: Adds overlay type checking

Checks have been added to determine whether or not to readd a repo
if the overlay type reported from the remotedb is different from the
overlay type reported by the local db.
overlay.py: adds update() function

To update local database and overlay source urls, this function
has been created to allow the overlay.type functions to update
their source urls in their own methods.