* commit 'a5b55567aa':
  - adding Tracking for Downloads and fixing last bugs in tracking and Routing - Adding Download Class correctly with dynamic download function - create 404 Not FPund Page and integrated it correctly - include Facebook like Button - fixing background for devices with 320px display width
  - adding Tracking Class

- Adding Download Class correctly with dynamic download function
- create 404 Not FPund Page and integrated it correctly
- include Facebook like Button
- fixing background for devices with 320px display width