massive update: replaced previous workflow by assemble.io (includes building markdown); makes soy redundant
* added support for uncss, which reduces the size of the css file from 126kb to 8 kb
* adding styles.min.css via processhtml
* added auto link and isactive helpers to produce the navbar links automatically
* FIXME: sort order of links in the navbar
* updated cdn repositories
* added social media icons
* social media stuff is generated automatically via yaml
* fixed github url
* changed gplus url
* added field 'priority' to all existing pages
* added handlebars custom helper: each_sort_nav in order to sort the pages in the navbar by their priority
* added copy task for images and icons
* proof-reading (just layout)
* minor changes to the about page
* added sample image of myself :)
* some design changes
* due to the larger navbar (@navbar-height: 80px), the dropdown menu doesn't look good for smaller screens ...
* small fix for the ipad resolution (@screen-sm-min was overlapping with another layout, i.a., the layout "jumped")
* exclude jquery.min.map
* removed uncss and cssmin from dev-build
* spell-check
* moved container element from index.hbs to default.hbs
* some layout changes (white header and footer, gray body)
* fixed drop down menu spacing and visibility
* added dynamic navbar behaviour:
  - navbar hides while scrolling down on small screen devices
  - navbar is visible while scrolling up again on small screen devices
  - no changes for devices with screen width >= 768

* might concat the three js files in the future (jquery, bootstrap, navbar)
* added handlebars-helper-mdpartial