Update gitignore.
Merge pull request #11 from domainr/gitignore

Update gitignore.
Remove INPopoverController from cocoapods.
Merge pull request #12 from domainr/update_cocoapods

Remove INPopoverController from cocoapods.
Escape key now hides window.
Merge pull request #13 from domainr/escape

Escape key now hides window.
Auto-submit search after idle keyboard.