initial implementation of live config
Merge branch 'liveconfig'

Conflicts:
	plover/config.py
	plover/machine/__init__.py
	setup.py
Improve dynamic changing of options.
Add gui display of machine statys.
Handle errors in machine communication.
Fix default location of log file.
minor cleanup
Bump version number.
Merge pull request #95 from balshetzer/master

Live configuration and machine status display