Added following functionality:
  * Multiple printer can be set in the configuration file or a new
    one can be named while executing the print command
  * It is possible to use ~ in the open and export command
  * Clicking on destination links works now
  * Show/Hide inputbar

Fixes and other changes:
  * Updated the dependencies to the right versions
  * Switched j/k in the scrolling command
  * Added command shortcuts
  * Fixed the rotation
  * Link command is for the preset only for showing external
    links
  * Added some command explanation in the man page
  * Adjust window on startup