Forgot some files for the #837 testcase
Output debug info only in debug mode
Use transparency from color name. Fixes #852
Output debug info only in debug mode
Set fixed point to 2^16
Removed unused code
Removed unused code
Bugfix: Zoom was broken for orthographic cameras. Fixes #853
Allow slices to be specified independently of twist. Fixes #850
Fix handling of multi-line comments.

If not eaten by the lexer, the comment content will be dumped to stdout
as default action.
Merge branch 'master' of github.com:openscad/openscad
Merged upstream changes
Merge branch 'development' into echo2file