Use where(...).count instead of conditions.
Sanitize inquiry message before stripping tags and truncating it in the backend view.
Use content_for :body instead :body_content_left (later was removed in Refinery 2.1).
Add mailer specs.
Append inquiry page body content before inquiry form.
Use same travis configuration as in main refinerycms repo.

Conflicts:
	.travis.yml
1.9.3 removal from .travis.yml was an accident.
Add license to gemspec.

[ci skip]
Merge remote-tracking branch 'upstream/2-0-stable' into 2-0-stable