Initial commit of working bluetooth connection code. 

Doesn't yet acquire... data, but it goes through the initial handshake, etc., and displays the results on the 'accounts' tab. Functionality is exposed as 'flexvolt' in the global namespace (i.e., window.flexvolt) for debugging.

Try checking out out this branch and running 'ionic run android' ... you might have to uninstall any old flexvolt app ... and see if it connects! If it works you might want to merge this into the master branch.