Merge branch 'release/3.0.0' into develop
Added an environment variable setter for base_url based on the config object in a before(:each) block
removed unused shared context file, and updated config parameter passing
Bumped version to 3.0.1 to prepare for release.
Updated CHANGELOG.md and gemspec for 3.0.1 release.
Merge branch 'release/3.0.1'