Display Errors Nicely

[Beamanator]

Figure out how to nicely & easily display errors on client import

Maybe show separate lists of Successes & Errors?

[Beamanator]

Currently (as of 0.2.0), errors are added to console output of options.js (but so are some other console messages). Here are some options for improvement:

1. Email errors to someone (may not be possible)
2. Display errors on options.js page (not in console)
3. Remove all other console output that isn't an error

I vote 2 - not sure if we can do this inside main controller, but we can try!

[Beamanator]

Errors now show up on options.html!
Just needs styling now...

[Beamanator]

Old errors may still persist on options page?
Make sure they get removed when import button is clicked!