* Makefile.in (cygpath.exe): Add -luserenv to ALL_LDFLAGS.

	* Makefile.in (cygpath.exe): Add -luserenv to ALL_LDFLAGS.
	* cygpath.cc: Throughout, use cygwin_conv_path WIN_W rather than WIN_A
	conversion.
	(get_long_path_name_w32impl): Remove.
	(get_long_name): Drop pre-Windows 2000 accommodations.  Just call
	GetLongPathNameW here directly.
	(get_special_folder): Convert first parameter to WCHAR buffer pointer.
	Drop conversion of result from WCHAR * to char *.
	(do_sysfolders): Accommodate change to get_special_folder and only
	convert result to char * last.  Drop pre-Windows 2000 accommodations
	and just call GetProfilesDirectoryW directly.  Replace call to
	GetWindowsDirectoryW with call to GetSystemWindowsDirectoryW.
	Just call GetShortPathNameW directly.
	(do_pathconv): Simplify buffer handling.