Updated to v1.7.6

* develop: (25 commits)
  Support for Download Manager
  Once again description updated
  More clear explanation of bypass function in options page
  Options cleanup
  Added bypass option for downloads
  Updated to 1.7.5
  added empty a for osx
  fixed background conflict with drop shadow in sidebar
  Options page animation
  Fixed background color navigation
  Css3 animations for sidebar
  Install bugfix
  Ready for deployment
  Temp commit
  Fixed hittable are of buttons
  Added browser menu
  Added Browser action:
  Percentages bugfix
  Manifest updated
  Ready for production
  ...