Rewrote most of the configuration
Fixed various bugs
Changed theme path to its absolute path
Cleaned up main wibox code and added awesome icon

It doesn't feel right without the awesome icon in the top left corner.
Made awesome icon imagebox code one line
Added client-specific rules
Simplified client rule adding
Added tag manipulation with number keys
Aligned key definitions to single tabs
Allowed promptbox usage with Mod4-R
Removed comment brackets for stable code fragment
Made rule-adding actually work
Made a utility module and adapted existing code

It contains a function to add global key bindings and one to add client
rules.
Fixed main taglist bindings

...by changing "modkey" to "MODKEY".
Code cleanup
Made tag "[aux]" use the fair layout by default
Fixed awutil.add_client_rules
Added documentation to awutil functions
Merge branch 'develop'

New config is stable enough.