remove mixins to update to marionette 0.30 #7
install apps, install marketplace dev and dev certs #3 #4
fixup
fixup: code clean up, fixed commands install_mkt and mkt_certs
fixup: almost there :P
fixup: install mkt dev from browser
Merge pull request #10 from vaidik/install_app

Update to marionette==0.30 and new features