Python3 support

Python2 will not be supported from this version

1.2.6

Upgrade Alfred workflow to support Alfred 4, thanks to @macfreek .

1.2.5

MOD: upgrade to support sierra

1.2.4

• add set tz <timezone> command, timezone is a number from -12 to 12.

1.2.3

fix self-updating

1.2.1

• add format-moment command to save custom format
• add self-updating