v0.0.1, 2013-10-11 -- Initial release
v0.0.2, 2013-10-11 -- Got rid of Unicode strings
v0.0.3, 2013-10-11 -- Added account balance and user transactions calls
v0.0.4, 2013-10-13 -- Added remaining calls, moved to OO approach
v0.0.5, 2013-10-14 -- Thread- and reuse-safe authorised calls
v0.0.6, 2013-10-14 -- Bug fixing in datetime response parsing
v0.0.7, 2013-10-15 -- Fixing return (type, sort etc) constants
