Merge pull request #20 from pulsecat/master

fetchTrades: 'since' argument can be zero value
Added sendBitcoin function
tweaked .gitignore
Merge pull request #21 from joshmh/master

Added sendBitcoin function

good addition!
updated example.js with sendBitcoin
updated example.js with sendBitcoin
Merge pull request #22 from joshmh/master

Added sendBitcoin to example.js
add depositAddress()
Merge pull request #23 from Roman2K/master

add depositAddress()