fix issue #30 - implement \033[nK
fix default params in call_win32 and implement CSI n B, C, D
small refactor
fix issue #13 - support changing the console title with OSC escape sequence
fix issue #49 - no need to adjust for scroll when new position is already relative (CSI n A\B\C\D)
add demo that tests CSI n ABCD and tests issue #49
add colorama.Cursor for cursor position manipulations
add functions set_title, clear_line, clear_screen to colorama.ansi
(e.g. print colorama.ansi.clear_screen())
small refactor