- Renamed 'prep' command to 'prepare'
- Cleaned up output of the 'prepare' command
- Removed File_Ops::recursive_kill_subdir() for '.svn' directory because we were just testing that function, we didn't need it there.
Added $singular_type_name and $plural_type_name to WPPM_Repository.
Fixed bug in assignment of $wordpress_svn_url inside WPPM_Package->__construct().