added Wallet class; started working on unit tests: see first example in spec/services/wallet_spec.coffee
added Wallet and Home controller specs
merged with main repo
Merge remote-tracking branch 'upstream/master'
Merge remote-tracking branch 'upstream/master'
synced with main repo
merged with main repo
syncing with main repo
bts_xt_gui is moved to web_wallet and qt_wallet repos
Merge pull request #97 from valzav/master

in a process of code reorganization the content of bts_xt_gui was moved into separate repos: web_wallet and qt_wallet