install: allow installation of provides with glob (Related:RhBug:1148353)
new authors added
cli: _process_demands() does not respect --caheonly (RhBug:1151854)
base: output a whole list of installed packages with glob pattern (RhBug:1163063)
groups: environments described after @ sign works (RhBug:1156084)
cosmetic: fixed some typos in documentation
api: transaction: added install_set and remove_set (RhBug:1162887)