Fix recursive include handling by using canonical path (fixes #885).
Update to use boosty.h as older boost versions seem to be still in use.
Merge pull request #886 from openscad/fix-recursive-include

Fix recursive include handling by using canonical path (fixes #885).
Attempted to summarize changes in master
Merge branch 'master' of github.com:openscad/openscad
Change FontDialog button to do "copy to clipboard".
Merge pull request #906 from openscad/text-fixes-5

Change FontDialog button to do "copy to clipboard".
Merge remote-tracking branch 'origin/master' into scintillaeditor
#879 Fix forward/backward search in the scintilla editor