some positive scenarios on: #230
Merge branch 'master' into issue_230
flake8 closing bracket - fixed.
made assertion of: __assert_exists
Implement GPG Keys cli positive create stubs

Also:
* fix a bug in cli.GPGKey list method
* improve make_gpg_key factory to accept a local file path and upload it
* update make_org factory expected options
removed some commented stuff, correct params passing now to the list method.
Merge pull request #413 from gkhachik/issue_230

some more positive user create scenarios covered.
Merge pull request #433 from elyezer/gpgkeys-cli-positive-create

Implement GPG Keys cli positive create stubs
Implement GPG Keys cli negative create stubs

Also remove stubs related to UI (copy/paste scenarios)
Merge pull request #436 from elyezer/gpgkeys-cli-negative-create

Implement GPG Keys cli negative create stubs
Updated and cleaned up README.

Moved to MarkDown formatting and cleaned up the README file.
Merge pull request #437 from omaciel/mark-me-down

Updated and cleaned up README.