Flavor filter modal

Added the flavor filter modal
Change the flavor choise combo to input
Merge branch 'master' of https://github.com/ttripp/horizon
Merge branch 'master' of https://github.com/ttripp/horizon

Conflicts:
	openstack_dashboard/dashboards/project/instances/tables.py
select the flavor from the modal

sets the input field in the launch instance
with the value of the selected flavor in the
modal
Merge branch 'master' of https://github.com/ttripp/horizon