1 Add additional map for keeping user's ignored files (exact matches) as a map for check speeding
2 speed test

impovements shown by test (10 checks for ignored, 10 checks for not ignored, 20000 files, 10000 ignored files mappings)
(on my machine)
old: 57528 ms
new: 412 ms

IDEA-98893 Freeze while working with 12.0.2 rc
Fix a problem with JSPX code style settings preview (as discussed with D.Avdeev)
Merge remote branch 'origin/master'
WI-17281 Allow to provide help by project generators
IDEA-101547 Please add a clock in fullscreen mode!
After-review: better repainting scheduling
WEB-7136 Emmet(sass): incorrect caret position after expand the abbreviation
WEB-7139 Emmet(sass): expanding abbreviation inserts a new empty line