add ``lessc`` command line tool
remove lessc
Merge branch 'master' of git://github.com/bashu/djangoapp-formula into HEAD

* 'master' of git://github.com/bashu/djangoapp-formula:
  Update utils.sls
  Update utils.sls
Merge branch 'master' of git://github.com/bashu/djangoapp-formula into HEAD

* 'master' of git://github.com/bashu/djangoapp-formula:
  Update utils.sls
Merge branch 'master' of git://github.com/bashu/djangoapp-formula into HEAD

* 'master' of git://github.com/bashu/djangoapp-formula:
  enable ``postgis`` extension
  feck
  update geodjango formula
  include geodjango dependencies
  use custom template
fix formula