v3.6.0

• Add postcss support with the following plugins
  • postcss-short
  • postcss-import
  • lost
• Add JS sourcemaps support
• Add plugin to minify PNGs
• Update "del" task. Now removes files in directory, not directory
• Index files now generates list of html pages, used in project (Now works only for .pug files)
• Add pre-push hook (Read the README.md, it's a cool thing)