Merge pull request #4 from Nuevosmedios/gerson-templates

Advances templates
Renamed some files
Now the chat link is activated only when agent is online
Added text in spanish -for now-
Groups menu disabled
Removed help from user navigation
Updated some urls on kme4u skin
Added GroupResponsible model
Forum redirection
Fixed redirection
Messages and chat comming soon
Updated cats models
Group support
Now the toggle images are ok
Message modal
Added INSTANCE_URL to settings
Fixed url
Added constant to context processor
Global variable
Better formatting