Add Coveralls for code coverage reporting
Loosen required_rubygems_version for compatibility with Ubuntu 10.04
Update examples for API v1.1

Closes #29.
Update tests to use latest version of rr
Update tests to use latest version of minitest
Bump version to 0.8.2
removing protocal from host; escaping uri params; showing help on no twurl path
tests for host and path
Merge pull request #31 from esbie/master

3 Twurl::CLI modifications for improved usability
Bump version to 0.8.3