Add SVG export.
Add SVG export via command line.
do not build gettext or glib2 by default. fix glib2.pri to find system version.
fix spaces.
do not suggest the 'time saver' of only opencsg or cgal build, too confusing
fix issue #705 by using MXE's mingw-*-pkgconfig instead of system
disable ctrl-mouse-wheel zoom on Mac by default. add preference to toggle
fix build errors
Catch exceptions caused by parsing invalid double values (fixes #706).
Merge pull request #712 from openscad/number-fix

Catch exceptions caused by parsing invalid double values (fixes #706).
add quotes to line 80 to prevent diagnostics
process events in consoleOutput() to allow error message display right away
Fix memory leak in lexer for $var assignments.
Merge pull request #708 from openscad/zoompeace

Zoompeace
Fix memory leak in sphere rendering.
Convert Assignment to use shared pointers for Expressions (fixes #709).
Delete ThrownTogetherRenderer and CSG Root Chain.
polish up so its easier to run under Windows(TM)
Merge pull request #730 from openscad/memory-leak-fix

Memory leak fix
mingw/win(TM) run: find ctest.exe and add to path
Merge branch 'unstable' of github.com:openscad/openscad into unstable