Experimental loading
Merge branch 'sprites' into opt_load
Cleanup appLoader
Clean up dependencies and app.js
Re-write progressStep to be more generic
Evaluate start loading time from the beginning of app.js
Remove useless dependency from steps
Fix ajax wrapper
Support ajax calls without data
More experiments with loading and add list_backends in dependencies
Add list_backends into appLoader steps
Merge branch 'opt_load' of https://github.com/mistio/mist.io into opt_load

Conflicts:
	src/mist/io/static/js/app.js
Remove progress bar callbacks
Load jqm when ember loads
Fix jqm silly css rule
Merge branch 'staging'
Merge branch 'staging' into opt_load
Merge branch 'sprites' into opt_load
Merge branch 'staging'
New template precompiling script
Merge branch 'staging'
Fix hcomp script
Merge branch 'master' into opt_load
Merge pull request #214 from mistio/opt_load

Loading optimization