fix bug where if $MXEDIR didn't already exist, build failed
allow 'mingw32' option. dont use OSTYPE. fix docs. allow NUMCPU multicore build
fix tabs in svg.cc
actually assign copyright to Marius + Clifford, to eliminate any
problems with Debian.
clarify mingw32 usage in docs & in 'print usage'
hand code html to remove qt cruft. makes it easier to change, and easier
to spit out to cmdline (eventually)
tidy up html for QTextBrowser. add shortcut for 'help'
move flattr image to right-hand side.
unify build scripts. introduce 'version checker' script. simplify instructions
do not use OSTYPE, its a read-only operating system variable
clarify README linux compilation
enable 'out of tree' call of dependency scripts. fix old ubuntu detection.
for out of tree, build under $PWD/openscad_deps not $PWD
update boost version. allow 'out of tree' dependency check. fix cmake detection
convert tabs to spaces. fix some BSD problems
skip broken opengl testing under eigen3
change 'system' to 'found' in header of printed table
improve qt version detection
improve OpenCSG build to use qmake + work better standalone
CGAL<4.0.2 has strange errors with clang. notify user explicitly to upgrade.