Prelim IO module for registering custom IO formats
Draft implementation of input/output
Added old antelope IO file, needs work to function
Fixed antelope I/O and added to core, not tested fully yet
Bumped version and put 'io' module in setup.py, db package is moving to scripts
Fixed up the doc for input/output methods
EventHashPype is just an example now that I/O is modular and HashPype is main class
Fixed some more Antelope I/O bugs, typos in hashpype
Cleaning up