issue598 file open - remember the last directory 'file open' was in and reuse
bug rept per Michael at Oz
build on system without OpenGL. do cmake .. -DNULLGL=1
add PRINTD to printutils.cc
add PRINTD to printutils.h
add '--debug=' option to openscad cmdline. see printutils.h for usage
add global OpenSCAD::debug string to printutils.cc (see printutils.h for usage)
replace logstream with PRINTD / PRINTDB . add boost include to printutils.cc
fix PRINTD to PRINTDB
add missing file
adding missing file
undo my changes
Merge branch 'unstable' into nullgl
Merge branch 'unstable' of github.com:openscad/openscad into unstable
Add a testcase for a bug with self-intersecting polygon outline
Editor: Implemented simple Find functionality
Editor: Reduce find panel bottom margin
Editor: Implement Search & Replace
Editor: Subtle UI Tweak

Return in the find or replace field will animate the triggered button
Merge branch 'unstable' into printd0
Merge branch 'unstable' into issue598fo