Merge pull request #64 from Evaneos/last-panel-full-screen

The last panel now fills all the remaining space of the viewport
Improve icon font generation & resolve bug when spinning
Adding postcss to compile task. Use autoprefixer for vendor prefixes.

Now vendor prefixes are automatically added when needed. The browsers targetted are the last two versions of each browser.
See https://github.com/postcss/autoprefixer
Removing animations / splashscreen
[Generating dist files]