Adds RailsGenerator to simplify setup in a Rails app.

In order to ease installation, you can use:

`$ rails generate jquery:datatables:install`
`$ rails generate jquery:datatables:install bootstrap2`
`$ rails generate jquery:datatables:install bootstrap3`
`$ rails generate jquery:datatables:install foundation`
`$ rails generate jquery:datatables:install responsive`
ajtillas21 branch conflict resolved
Merge pull request #141 from trkrameshkumar/solved-merge-conflict-of-antillas21-branch

Solved merge conflict of antillas21 branch