Add async functionality
Merge pull request #4 from acumenbrands/async_operations

Add async functionality
Version bump, protocol change in gemspec
Add lib/* to packaged files
Bump version
Merge pull request #6 from joshfrench/fix-gemspec

Fix gemspec
Add async functionality
OOPier approach to controlling API params
Compatibility with RSpec 3 / AS 4

Closes #1