dpixel issues

Installer fails due to insufficient privileges

1

![image](https://user-images.githubusercontent.com/30781325/36507547-0adcc66a-1728-11e8-83b9-650b10c8eba1.png)

kryptot7

bug

Export gif from shaders

marcoc2

enhancement

Add support to glslp files from libretro

marcoc2

enhancement

Create config file to know if is the first time opened

If first time give hints like "You can drag and drop files"

marcoc2

enhancement

Problem in the image information display

The filter information layout is broken ![screen shot 2016-06-16 at 13 42 28](https://cloud.githubusercontent.com/assets/1537712/16126005/a94f764e-33cc-11e6-9937-c3d39dcb40b8.png)

mcleary

Indexed png still causing random crashes

The attached file is an example Valgrind catch use of unitialized memory on void Image::fillBufferRGB() (lines 274~276) ![f-rzx](https://cloud.githubusercontent.com/assets/244331/15903505/7ef19052-2d83-11e6-8e81-cfa7d2908163.png)

marcoc2

bug