Merge pull request #13 from joelparsons/master

Added gitignore
Fixed Xcode hanging if _updateIndexableFiles ends up getting called a ton. This can happen when Xcode decides it wants to reindex an entire workspace one file at a time.
Renamed rebuildImageCompletionsForIndex: to indexNeedsUpdate:
Added image display.
Fixed an issue where some images would report wrong sizes.
Merge pull request #16 from fzwo/master

Added image display
Fixed image extensions missing from completion menu.
Fixed crash when image is nil
Crashed Fixed

On multiple display device it crashes the Xcode...
Merge pull request #1 from hamdullahshah/patch-1

Fixed crash that could occur in some multi-monitor configurations.
Merge pull request #18 from fzwo/master

Fixed a crash that could occur in some multi-monitor configurations
Handle @2x~ipad images correctly so that they appear only once in the completion suggestions.
Fixes #14.