Added a "keep" field to package descriptor files which will prevent the specified files from being overwritten
Completely revamped the bpm-setup script in the bpm-utils package
- Reformatted the help subcommand
- Updated bpm-utils to add the ability to create source packages
- Source temporary directories will now be removed after installation unless the user passes the -k flag
- BPM will now not remove the old version of a package before installing an update which could cause libraries or programs required for installation to be missing. Obsolete files will now be removed after installation
- The version, list, info and help subcommands can now be run by any user without root permissions. Root permissions are still required for package installation and removal
- Removed installed package info fixing for now. It will be replaced by a better system in the future
