Update license name and unbounded dep to fix build warnings

Bump dependencies. Add `addressable` to replace URI.decode/encode calls

Updated ucf to fix rubyzip vulnerability.

Version 0.2.4

Version 0.2.3

Version 0.2.2

Bumped minor version

test with ruby 2.1.6

Update Changes.rdoc for release.

Add documentation for version 0.1.0.