Extract light_wallet from wallet library
Merge branch 'develop' of github.com:bitshares/bitshares into develop
Add light_wallet lib to cmake config
Light Wallet: Create Qt-friendly interfaces

Here I'm creating some interfaces for light_wallet so that I can work
with the wallet from QML. There's lots of work left to be done, but it's
a start.
Merge branch 'develop' of github.com:bitshares/bitshares into develop