Add pkg/ to the .gitignore file

[zedtux]

As of now you're including binary files in your Github repo (the pkg folder created by Bundler when using the build or release Rake task).

This is not critical but not clean. Also it contains first versions which doesn't make sense :)

[akashdevaraju]

Thanks very much for that :) will make the changes and push.

[akashdevaraju]

Resolved with c34f15c