Push to 3.0 release

Shortly 2.3.1 update

Shortly 2.2 update

This update contains:
  - Add native shortlink support for: git.io, bbc.in, kkbox.fm and reut.rs
  - Add known native shortlink list auto-update, so Shortly can automatically support more native shortlinks without update the whole extension.

Shortly 2.1 update

This update contains:
  - A new `Popover` for displaying results and messages.
  - Minor tweaks.

There are also more translatable strings on Github or at:
https://www.transifex.net/projects/p/shortly/

Merge branch 'develop' into 'master'; relase version 2.0

Conflicts:
	Shortly.safariextension/Info.plist

Upgrade to v1.1.6

Adding API keychain template and README file