Current activity fix for Firefox 27

* Minor CSS change to fix offset username in current activity instances.
* Additional platform images for future use.
v1.5.4.1

* Minor CSS change to fix offset username in current activity instances.
* Additional platform images for future use.
Merge remote-tracking branch 'upstream/master'
Merge branch 'master' of https://github.com/hthighway/plexWatchWeb
Merge from Original