Ignore the resque-web url file.
Use the built-in formtastic label translations, rather than hardcoding a label.
Update subdomain test and leave an explanatory message in the validator.
Fix broken tests.
Pin devise due to failing tests on 3.0.0
Bundle update
Don't use stub! and mock, they are now deprecated. stub and double are the replacements.
Newline handling has changed slightly in new versions of mail. Update tests accordingly.
Check for name and email before inviting user.

The behaviour of mail has changed, and now throws an error if there's no To: on
the mail. Previously when submitting a blank invite form, we'd try inviting
email: "" and it would silently do nothing, and then the user would be invalid and
the form re-shown.

There's probably a better approach, but an additional benefit here is clarifying which
values we're checking, and which actions are being made, rather than just having everything
as one concatenated statement.
Add a check for encoded subject lines.

Problem was fixed in 'mail' gem somewhere between 2.4.4 and 2.5.4

Refs #226
Remove stray entries from Gemfile.lock
Merge branch 'staging'