added -n option, currencies are now double precision

README
	uninstallation now documented in UNINSTALLING
	-n option now documented

btcapi.h
	currencies are now represented by double

btcapi.c
	removal of #if DEBUG checks -> checked in btcdbg.c instead

btcdbg.c
	definition of IGNORE() macro, ignores unused parameters
	checks for DEBUG macro in btcdbg()

cmdlineutils.c
	-n option added to --help
	btcdbg added to resetw() and resetb()

main.c
	addition of n variable (double) for --amount
	removed redundant fwide() function call