Initial Import
Add OneRepoDiff and CompleteRepoDiff classes.
Quieten check_sanity method in CompleteRepo.
Changelog messages uses list instead of set.
'requires', 'provides', 'conflicts', 'obsoletes' attrs are now set([]).
Multiple typo fix.
Fix diff in CompleteRepo.
Add support for repomd.xml file.
Fix in sanity check.
remove debugg output
Add support for metadata from rawhide createrepo
Fix typo
Some fixes
Fix parsing of pre argument
Fix loading of base path
Add ignore_missing_sqlite option
Add support for .xz and add comparsion exception
Fix repomd compare
Support for tags in repomd
Add forgotten repomd.py