Complete gruntfile with new tools and fix jshint errors

Created originally on Bitbucket by efolio (Etienne Folio)

Changesets for this Pull Request have not been imported, because it had been already declined on Bitbucket. Marked as closed by the import user.

The server files have been reindented.

As bitbucket's diff tool doesn't handle the whitespace diffs, the server files are a mess. A decent hg client can with the following options:

#!

[diff]
ignorews = 1
ignorewsamount = 1
ignoreblanklines = 1