Omni-0.7.0 released

- Fixed the Ghostscript interface gomni.c. There are new patches for Ghostscript!
- We have switched to autotools as our build environment.
- Reported bug in gcc compiler (6316). The latest CVS release of gcc should build omni (thanks to RichardZidlicky@stud.informatik.uni-erlangen.de)
- Fixed gcc 3.1 build issues for streambuf assignments, CUPSToOmni.cpp, setit, and Omni.cpp (thanks to till.kamppeter@gmx.net and gbeauchesne@mandrakesoft.com)
- [Till] Fixed Foomatic handling of + in device names. Fixed small gcc 3.1 bug.
- Fixed the handling of command line arguments in ghostscript.
- Fixed the handling of -sPAPERSIZE= in ghostscript and foomatic (thanks to till.kamppeter@gmx.net)