crc change and combine files

replaced crcmod with built in crc table.  combined function and queue
files into the main file.
example script updates

Renamed scanalltables to scanalldata.  Updated files to reflect single
brybus.py file.  Changed scan scripts to output files.  Added tableascii
to look for ascii data in the tables.
update readme

Update readme for all files.
update readme

add requirements section
Update README.md
deal with scanning bad ASCII data

Fix scandevtable.py to deal with bad ASCII data.  Fixes #6
update read function

Updated read function to pay attention to the CRC and seek a little
smarter.  Closes #4 and Closes #1
add dblogger.py

Added dblogger.py.  It keeps a state of the registers, and logs them to
the DB if they change.
Update README.md
Convert from mysql to sqlite
Merge branch 'master' of github.com:nebulous/brybus

Conflicts:
	brybus.py