update to latest HEAD
- Have "yum check" ignore self conflicts.
- Add simple testcase for installing older intermediate kernel. BZ 1063181.
- Don't look for upgrades for install only packages. BZ 1063181.
- check if repos list is empty after excluding disabled repos. BZ 1109473.
- Allow caching local repos. BZ 1125387.
- Expect KB as well as MB in disk requirements message from rpm. BZ 1051931.
- Multiple lvm fixes. BZ 1047793, BZ 1145485.
- Change the sqlite synchronous mode for the history file, to NORMAL.
- Add CAShe config. and objects, use it for MD and packages.
- Add query_install_excludes conf./docs and use it for list/info/search/prov