Move statusbar creation out of UI creation
Remove old prontserve-related files
Rename custombuttonbuttons to custombuttons

Looks like a sed failure happened before ><
Actually commit statusbar creation back (69d66a596 was incomplete)
Revert "Rename custombuttonbuttons to custombuttons"

This reverts commit 2a90d5b34471bae06f072a8e8ef398fbbeee6e30.
Rename custombuttonbuttons to custombuttons_widgets

Previous rename was wrong as it overlapped with another variable in use,
thus breaking everything. D'oh !
Skip size/reshape events in glpanel when frozen/too small
Add initial instant reload of UI

UI state is not preserved yet (controls will be recreated as disabled,
button state won't be restored)
Remove old file
Update .gitignore
Move printrun/gui.py to printrun/gui/
Split gui source into multiple small units
Fix tempgraph position in Tabbed mode
Make instant reload of UI functional. Woohoo ^^
Minor comment & todo