Added a content security policy.

This version fixes some small visual bugs and adds support for gmail mini-calendar view.

Visual Updates:
Set text color so declined events don't have weird color text
Darken colors when calendars are using the same color
Apply shadow to text for better readability

https://github.com/imightbeamy/gcal-multical-event-merge/releases/tag/v2.2.0

Fixes creepy crawly events issue.

https://github.com/imightbeamy/gcal-multical-event-merge/releases/tag/v2.1.3

https://github.com/imightbeamy/gcal-multical-event-merge/releases/tag/v2.1.2

Two small bug fixes:
Events are not merged when you're the owner
Resetting event styles when they're changed to no longer be part of an event set

https://github.com/imightbeamy/gcal-multical-event-merge/releases/tag/v2.1.1

Removes "tab"/"browser history" permission. (#53)
Also fixes some issues with custom colors (#52)

There were some FireFox compatibility issues in the first version, this version fixes those!

Other updates:
Re-merges less often.
Use browser storage for enabled setting.
Refresh the right tab, not the active one.