auto reload UV by filechange event

tested on:

• Blender 2.79.b
• Python 3.6.2 / windows 10
• Python 3.5.2 / ubuntu 16.04

Dependencies

• watchdog 0.8.3
• pathtools 0.1.2

Installation steps

• pip3 install watchdog
• pip3 install pathtools
• python3 -m site
• find and open %YOUR_PYTHON_PATH%\lib\site-packages
• copy watchdog, pathtools directory into %YOUR_BLENDER_FOLDER%%YOUR_BLENDER_VERSION%\python\lib\site-packages
• install addon in blender preferences
• use it from UV/Image Editor > Tool Shelf > UV Autoreload