Make heat.js angularJS strict mode compatible
Make heat.js angularJS strict mode compatible

Our code doesn't fully work with latest versions of angularJS.
Mitaka has bumped angularJS versions, and therefore our
code is broken: Our horizon-extension panel is not showing
the dynamic content.

This should fix it.
The guidelines followed are here:
https://docs.angularjs.org/error/$injector/strictdi

Thanks to @neillc for the help.
cloudnull/rpc-openstack,darrenchan/rpc-openstack,hughsaunders/rpc-openstack,shannonmitchell/rpc-openstack,rcbops/rpc-openstack,git-harry/rpc-openstack,major/rpc-openstack,robb-romans/rpc-openstack,shannonmitchell/rpc-openstack,jacobwagner/rpc-openstack,xeregin/rpc-openstack,prometheanfire/rpc-openstack,sigmavirus24/rpc-openstack,BjoernT/rpc-openstack,robb-romans/rpc-openstack,darrenchan/rpc-openstack,cloudnull/rpc-openstack,galstrom21/rpc-openstack,hughsaunders/rpc-openstack,sigmavirus24/rpc-openstack,rcbops/rpc-openstack,galstrom21/rpc-openstack,darrenchan/rpc-openstack,jacobwagner/rpc-openstack,xeregin/rpc-openstack,BjoernT/rpc-openstack,prometheanfire/rpc-openstack,mancdaz/rpc-openstack,sigmavirus24/rpc-openstack,darrenchan/rpc-openstack,cfarquhar/rpc-openstack,xeregin/rpc-openstack,mancdaz/rpc-openstack,major/rpc-openstack,git-harry/rpc-openstack,cfarquhar/rpc-openstack,sigmavirus24/rpc-openstack,xeregin/rpc-openstack