Revert "Removed Jeweler from project"

This reverts commit 9ee3220271f4da408a51b33e3f915a46c5b26c1a.
Removed lockfiles
Updated .gitignore
Updated travis testing
Added some sugar to travis.yml
Some Gemfile tweaks
Temporary fast travis testing
Moved changelog into separate file
Added rake to Gemfile
Fixed Rakefile after merge
Updated Gemfile
Regenerate gemspec