Add try and catch method in placeholder jquery

reference-> innoraft/ir.love.revamp/issues/147

At some point placeholder jquery return a null so that it will give error
and o no other jquery is running so we use try and catch (exception)
Remove page-not-found selector from sass file

reference-> innoraft/ir.love.revamp/issues/147

This selector is used in css with :not property which will create a problem
in ie8
Add sass complied file

reference-> innoraft/ir.love.revamp/issues/147
Merge pull request #149 from akashjain132/akash/menubar_ie8

Add exception in placeholder jquery and come change in css