Added pb_blockdev/md/__init.py
Changed some global variable names in pb_blockdev/base.py to capitals
Made test/test_multipath.py executable
Added method opened_by_processes() to BlockDevice in pb_blockdev/multipath/__init__.py
Added method check_for_deletion() to BlockDevice in pb_blockdev/multipath/__init__.py
Cosmetics in pb_blockdev/base.py
Added test method test_fuser() to test/test_blockdev.py
Added functions uuid_to_md() and uuid_from_md() and the class GenericMdHandler in pb_blockdev/md/__init.py
Updated po/py_pb_blockdev.pot
Worked on localisation