Update README.md

Update options.png

Remove APNG from readme

Remove APNG from readme since load times on system with slow internet connection are too slow

Update README.md

Update README.md

updates in draw functions

- changes in draw function to make it more generic
- draw the App Icon on the screen when no GIF file is found

Update README.md

Add possibility that GIF never changes in directory mode

Ass for feature request Waitsnake#36 .
Also include license file now automatic into bundle file.

new version 1.3.7

includes fixes for Waitsnake#33 and Waitsnake#35

New feature: image filter option

There is a new option on the preference panel to select an image
filter. There is a blur and a sharp filter. This should be a solution
for Waitsnake#32 .