Merge pull request #3 from coffeeaddict/master

Invitations and specs
Added workspace client
Workspaces without owner slug
Updated invitation docs
Added delegations
Added workspace update/destroy
Merge remote-tracking branch 'upstream/master'

Conflicts:
	lib/om_api_client.rb
Merge pull request #4 from JiriChara/master

Workspace update/destroy (w/o specs and docs :( )
Added specs and docs for workspace module
Merge pull request #5 from JiriChara/master

Added specs and docs for workspace module
Added api endpoints for stacks
Switch over from Sawyer to Faraday

- Sawyer has more then we need
Enable adapter specification
Wrote specs for the actual request
Specs for Resource
Merge pull request #6 from JiriChara/master

Added api endpoints for stacks
Updated docs
Needlessly complex
Added workspace client
Added api endpoints for stacks