bugfix for +1 error in VIFE parser
now VIFE and DIFE behave equal
fix memory leaks in error case
fix potential segmentation fault
Improve wildcard search
- handle collisions after request for secondary address
- check frame type correctly
- ignore M-Bus devices without secondary address
fix indent
Merge pull request #56 from lategoodbye/master

Improve wildcard search, fix leaks and segfault