add get_partition_for_path()
add check for hazardous AUFS config
print warning on harzardous AUFS config
take AUFS release over kernel version if possible
descriptive comments for find_hazardous_aufs_config()
add link to workaround page on cernvm.cern.ch
check release number in aufs_type.h
run health check after mkfs
generalize regex for AUFS_VERSION
explanatory comments
list of possible aufs_type.h locations
TEST: AUFS warning for potential kernel deadlock
add ~Pathspec() to cleanup regex contexts
FIX: custom copy c'tor to handle regex contexts
TEST: unit test to ensure proper copy c'tor
Refactor: add DestroyRegularExpressions()
FIX: add assignment operator
TEST: unit test for assignment operator
add TODO C++11 comment
generalize SqlLookup::GetFieldsToSelect()