gui render: improve sliders
prepare for gui back-in-time
cleanup render
autosave bookkeeping
rudimentary scroll-back-to-the-past for saved data
todo: oomf time stamps
recompile ptx 3.2 (was mixed 3.1, 3.2)
render minor cleanup
fix typo Anitvortex -> Antivortex
Merge pull request #5 from syockit/syukri

fix typo Anitvortex -> Antivortex
gui cleanup
temporarily disable render backintime
start to separate gui from engine
fix .go tests
move keepalive into gui state
move keepalive fully into gui
gui.Prepareserver on demand
cleanup
imporve gui mesh size handling
fix geom init + progress