Move bpython reliance to main.py
Merge remote-tracking branch 'upstream/master'
Merge remote-tracking branch 'upstream/master'

Conflicts:
	calculon/display.py
Fixed CLIRepl refs
Integrate with voltron

Exposes an object V in the repl if it connects to voltron.

Attributes on V map onto the registers of the current inferior
Merge branch 'features/voltron' of https://github.com/richo/calculon
Fixed autocomplete
Error checking on load
Better error handling when connecting to voltron
Refactored VoltronProxy for better error handling and to allow connection/disconnection from within the REPL
Added voltron support and wide example to README