small conditional refactor
fixed bug that hides log_file being null in options
added context manager to use the dummy_app in an easy way in our tests
added several tests for mamba-admin package install and pack
fixed some bugs related with package pack
added more tests for packaging system
added Unknown 209 response to fix problem with routed functions that does not return any value
added tests for Unknown response method and logic around it in routing
relnotes updated
removed some comments from mamba-admin
fixed bogus error message when Json configuration file is not valid
Merge branch 'master' of github.com:DamnWidget/mamba
restart command added to mamba-admin command line tool
minor changes to documentation
small fix to application config defautls
removed really not useful log message in response constructor
multiservice is registered now into Mamba application object
added possibility to cancel deferred on controller exceptions

Fixed bug in template rendering. Added Chekcers global class, fixed
faviconf location on controllers with multiple levels
moved IController implementation specific code from user level to framework level
documentation updated as we don't need to implement IController interface in user-controllers level anymore