IntelliJ IDEA blocker bugs

Sometimes when working with IntelliJ I come across bugs that make me seriously consider going back to nano.

Removes required imports: http://youtrack.jetbrains.com/issue/IDEA-130118

Fixed in IC-136.1651:
Formatter is simply broken: http://youtrack.jetbrains.com/issue/IDEA-110736

Fixed in IC-138.2210.3:
Marks errors that don't exist: http://youtrack.jetbrains.com/issue/IDEA-72835

Fixed in IC-139.1.20:
Formatter is honestly broken: https://youtrack.jetbrains.com/issue/IDEA-130275