fix issue #46 - win32.COORD definition missing
fix set position after erase_data (SetConsoleCursorPosition rejects 0, index must be 1-based)
fix passing params to erase_data
implement \033[0J and \033[1J
fix issue #55 - erase_data fails on Python 3.x
fix issue #30 - implement \033[nK
rename erase_data -> erase_screen
fix default params in call_win32 and implement CSI n B, C, D