Move user defined settings to settins.py

* Move all user defined settings in settins.py in the top level
  project directory.
* Keep all application constants in src/mist/io/config.py
* Expose all settings from settings.py in config.py
Code Refactoring Alpha State for Monitoring Controller,
Made debug easier, Graphs more flexible,changed the way controller
interacts with graphs ( via custom events )
Made graphs more dynamic by including them in a associative array,
(important update for dynamic metrics)
Graphs now are updated via events, removed view instance from controller
Graph Animation can now be turned on or off,
Added a way to disable and enable graph updates (via controller)
Fixed disable updates ( animation was off but graph was updated )
Added change step function (not fully working yet)
update hpcloud branch
fix openstack ssh deploy
increase max_times for deploy of a server
add alternate usernames for hp cloud deployments
Fixed a bug of asynchronus reload
Created a method for custom requests
fix indentation
fix enable monitoring for OpenStack
refactor add_backend
fix typo in add backend
fixes bug in add backend
Add rename_backend API test
Added goBack history Feature (Not fully working yet),
Updated custom request function to wait until pending request has finished,
Changed graphs horizontal scale for non animated graphs in order to display
all values.