GitLab

* TODO: alpha blending doesn't seem to work
* Also: decreased camera zoom (zoom should be called distance...)

* Better efficiency (of course one timer is sufficient!)
* Less complexity, higher accuracy (just compute the actual rotations!)

* Seems to fix pan/tilt control
* Tilt probably needs some fine tuning in boundary check/handling

* Zoom: right mouse button + move up/down
* Pan: left mouse button + move left/right (pending, possible fix: upvector?)
* Tilt: left mouse button + move up/down  (pending, possible fix: upvector?)

* Added toggle for status bar (view menu)
* Added toggle for menu bar (now invisible, have to preserve shortcuts somehow!)
* Added primary control button to animation control
* Improved animation control action

* Again, not to scale!
* Also: fixed quadrics pointer initialization

* Configured slider and LCD
* Menu actions
* Status tips

* One pulsar with "lighthouse" cones (not to scale!)
* Independent timers for rendering and animation

* First rough GUI layout
* Added widget for OpenGL context
* Using dedicated working directories
* Adjusted .gitignore