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fixup issue 593
Create freenode-verification.txt
removed temporary file
issue598 file open - remember the last directory 'file open' was in and reuse
bug rept per Michael at Oz
redo assemblePath for Win. redo openscad.com to handle spaces in filenames
fixup 593 revised
Made executable
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
bugfix: When trying to copy Nef polyhderons, we were just copying pointers, defeating the const
Merge pull request #624 from openscad/issue598cmdline

Issue598cmdline
add missing file
adding missing file
undo my changes