Bugfixes:
- Byteorder was wrong when displaying ATQA in hf 14a read
- 7 Byte UIDs were truncated to 4 Bytes when displaying in hf 14a cuids
git housekeeping:
- added *.log files to .gitignore
- new file .gitattributes: tell git not to diff or merge binary *.bit (FPGA) files
hf 14a reader enhancement

In order to be able to distinguish between Mifare Classic and Mifare Plus
in Security Level 1 (SL1, Mifare Classic Compatibility Mode), hf 14a reader
now always tries RATS - even if SAK claims not to support ISO14443-4.