Improve styling and behaviour of options page #10
Description
The options page looks fine right now, but it would be nice to make it match the look of the default Chrome settings page a bit more. However, I'm reluctant to do that manually because there are plans to add some default styling to extension's options pages. Doesn't seem very active though, so I'm not sure how far off it is.
Additionally, the interface could be easier to use. I'm not sure a drop-down is the right way to choose between hundreds of time zones, maybe an auto-completing text box and some validation? We could use Chosen for this.
To specify the list of URLs it would also be great to have something like this, where there are separate text boxes for each URL and a button to add a new one. Again, reluctant to do this manually because it may be supported by default in future, but we could be waiting a while.