upgrade to "kriswallsmith/assetic": "1.1.2"

some of the existing dependencies giving problems with "kriswallsmith/assetic": "1.1.x-dev" .. so please upgrade existing to  "kriswallsmith/assetic": "1.1.2"
Merge pull request #7 from aditya-/patch-1

upgrade to "kriswallsmith/assetic": "1.1.2"