Fixed a bug where tabs might appear empty due to timing

Long urls are now ellipsis.
Fixed use of window.load method which is now deprecated (causing the "indexOf" error).
Added better Gfycat.com handling.
Reworked Reddit support using the API.
Reworked to a more async model for the image page.

Resolves many user issues with recent update.
- Confirm dialogs are now working again.

Updates for Firefox Quantum