solve rails4 run rake 'undefined method 'existent' for nil:NilClass' exception
Merge pull request #28 from vkill/hotfix/rails4_rake_bug

solve rails4 run rake 'undefined method 'existent' for nil:NilClass' exc...
Added compatibility with Rake 10.x.

Signed-off-by: James McCarthy <james@thisishatch.co.uk>
Updated README.md with authors.

Signed-off-by: James McCarthy <james@thisishatch.co.uk>
Bumped version to 0.3.0.pre2. Rake 10 compatibility

Signed-off-by: James McCarthy <james@thisishatch.co.uk>
Added travis support for testing agains Rake 10 and Rake 0.9.

Signed-off-by: James McCarthy <james@thisishatch.co.uk>
Updated gemfiles to get rake 10 and 0.9 testing with travis.

Signed-off-by: James McCarthy <james@thisishatch.co.uk>