Moved preview to temporary folder, resolves #25

Build is destroyed, needs to be fixed by replacing bundle with useref
Low-level text and icon file copying
Updated gitignore for Node, Bower, OSX and Windows
Replaced styles event stream with filter
Removed bundle task, resolves #24

This messed with a lot of features, downgraded some plugins, so it’ll
need some work
Restored event stream
Implemented responsive images, resolves #26
Restored functionality for sitemap, W3CJS and minifyHTML
Fixed small bug with useref deployment
Changed 'html' to 'compile', clean tmp directory after build
Fixed uncss HTML location
Watch for changed images in the temporary folder
Fixed image and templates task dependencies for build
Added brew dependencies to Travis config
Changing from brew to apt-get
Version bump
Merge pull request #27 from haydenbleasel/development

Preview folder, massive config overhaul, new features