Omni-0.6.1 released

- Added new DeviceString class to handle translateable Strings.
- Added getDeviceID () function to Orientation, Resolution, Form, Tray, Media, and PrintMode Device classes. Added the optional deviceID XML tag to those XML files.
- Trying to work on documention issues.
- Fixed the Ghostscript interface gomni.c. There are new patches for Ghostscript!
- Added install target to Makefile.
- Added RedHat directory which contains spec files for RPMs.
- rewrote UPDF to use XML file dynamically instead of converting to cpp files and compiling into a library.
- Added beta-level CUPS support!
- Added support for libxml2 (thanks to prowler@ig.com.br for spotting that)
- Added two new tools for omni: OmniDevices & OmniDeviceOptions. See docs/Usage for a description on how to use them.