added support for wildcard XInclude in XMLFileBacked
abstracted similar digit range classes in POSIXUsers/GroupPatterns into Bcfg2.Utils
moved common file locking code into Bcfg2.Utils
Metadata: allowed setting global default authentication type
Metadata: process default client bootstrap mode properly
added docs for Bcfg2.Utils
better Executor class for client tools
extended usage of Executor class, added client-side timeout options
YUM: Adding functionality to YUM client tool to resolve YUM groups when server-side resolver is off
Packages: Adding Yum groups to Bcfg2's internal dependency resolver
YUM: Fixing long lines
YUM: Cleaner implementation of missing_attrs() from superclass
bcfg2-test: added option to spawn multiple child processes to run tests
YUM: Fixed YUM Group package selection with group types (default, optional, all) on client tool
Metadata: fixed typo
Reporting: added support for various SELinux entries
Reporting: added support for POSIX user/group entries
added PEP-8 style checks to test suite
full pylint tests on bcfg2-reports
Admin: Fix __call__ method in bcfg2-admin init

Signed-off-by: Sol Jerome <sol.jerome@gmail.com>