* adjusted README.md
* added libsass (grunt-sass) and removed rubysass (grunt-contrib-compass) to compile sass faster
* disabled data-png and png-fallback in svg-background mixin (discontinued IE8 and lower support)
* renamed sass/icons to sass/svg-bg-extends
* adjusted output in string-replace-task and syntax in svg-background-mixin for a better matching
* added `--port` parameter to override default port 9002
* added `--livereload-port` parameter to override the default port assignment to `--port + 1`
* added clickable links after webserver is started
* added explanation for the javascript part
* properly return App instance when returning app.js module
* added initial requirejs workflow
* added reports-folder, moved reports of accessibility, photobox and phantomas into it
* added {{autolink}} handlebars helper
* register partials helper for assemble in gruntfile
* `button`-normalizing migrates from `_buttons.scss` to `_basics.scss`
* empty folders like `fonts` will be copied with a .gitkeep file
* appicons, touchicons and favicons are now located in source/img/appicons
* updated grunt-autoprefixer to 1.0.1
* updated grunt-modernizr to 0.6.0