Disable extension in classic GMail

See #9

Usage instructions when clicking on icon

See #4.

Support multiple Google Accounts (/u/*)

See #8.

Fixed permalink URLs (one per thread)

• according to inboxsdk’s update.
• also adjusted positioning of icon

Better formatting of permalink

v0.3

v0.3: better formatting of permalink, thanks to @mvgrimes

Support for gmail

Merge branch 'mvgrimes-topic/gmail'

* mvgrimes-topic/gmail:
  Adds support for gmail

Initial release

v0.1

youtube links and contribution info