AviTab 0.5.1
Changes:
- fix cases where AviTab was hidden in certain multi-screen layouts
- compatible with X-Plane 12
- remember last window position
- support switching pages using the mouse wheel (or VR sticks)
- improve initial zoom level in document viewer
- support switching drives in file dialogs on Windows
- fix washed out colors in certain charts
- add Stamen as an alternate online map source: has Latin letters everywhere instead of local alphabets