Merge pull request #476 from am11/master

Sprite: Changed map file extension to ".map"
JSHint: Removed hack for local settings

Moved that logic to TsLintCompiler.
Lint: Renamed text on menu buttons
Lint: Made fix for config file encoding issue
Sprite: Added file icon for .sprite files
Image Paste: Support for file drops

This now also works when copying an image from Windows Explorer
Sprite: Added as menu item.
* Fixed several issue.
* Tested map generation.