Merge pull request tilemill-project#2721 from tilemill-project/dev

Update to how the unique version is created and tested

Fix to abilities test (tilemill-project#2679)

* Putting assertion on the version number back to how it used to be since the new code is failing and the old code used to work. package-lock also was updated by npm so checking that in as well.

* Updated version numbers for a v1.0.1 patch release.

Merge pull request tilemill-project#2623 from paazmaya/2622-license-p…

…roperty

Update license property to match current specification

tagging v0.10.1

tagging v0.10.0

tagging v0.9.1

Bump to 0.9.0

Update prefs migration for new config file location.

Better first run experiance for Ubuntu. Refs tilemill-project#980.

Add note about sparkle changes.