Store creds in .creds for ert tests
WIP: add beginning of test suite
Remove duplicated creds effort - should be in fetchmacs-creds.el
Write one failing test - provision keys from deprecated API
Update readme with API status: it's entirely deprecated, fetchmacs is BROKE
Minor improvements to readme
Improve UI - mode name and messages

Conflicts:
	fetchmacs.el
Merge branch 'origin-add-tests'