Bump version to 0.8.1

Set href on all draws of log

Fix positioning of video and image elements. (WebThingsIO#1598)

Fixes WebThingsIO#1595

Flash push button icon on events. (WebThingsIO#1443)

Fixes WebThingsIO#1442

Change "Done" button to say "Cancel" until a thing is saved

Fix WebThingsIO#1364

Add notifications (WebThingsIO#1352)

* Add Notification rule part UI

* Wire up backend for alerts

Bump version to 0.5.3.

Bump version to 0.5.2

Minor fix for add-gateway (WebThingsIO#1302)

I noticed that if you tried to add to a .zip file the final image
would be named .img.img

Fixes to prepare-base.sh for the merged wifi setup (WebThingsIO#1242)

* Fixes to prepare-base.sh for the merged wifi setup

* Updated to use HERE documents

* Final tweaks for 0.5.0