removed bootstrap2 CSS, added bootstrap 3.3.0 and fontawesome less files
added fontawesome fonts
added translations folder as preparations where translations should be located
updated html structured and classes for bootstrap 3.3
1. updated html structure and classes for bootstrap 3.3
2. use processhtml instead of targethtml to filter html during production build
updated project files
updated project files
updated build system:
- include less compiler as less is used project wide for stylings (including bootstrap and fontawesome),
 - added autoprefixer so css styles automatically are enhanced with browser-specific prefixes if needed
 - use processhtml to filter html files during production build as its better maintained
 - use grunt-appcache instead of grunt-manifest to create appcache manifest as its better maintained