another fix to the build system, the current way we check for lib dependencies do not handle lowercase vs. uppercase name differences correctly when using pkg-config. The only lib dependency that currently has this is Xcursor, so i removed the lowercase version so that "Xcursor" will be the only one that is searched for.

# -*- coding: utf-8 -*-

__all__ = [
	'basicapplication',
	'fife_compat',
	'fife_timer',
	'fife_utils',
	'fifelog',
	'filebrowser',
	'pythonize',
	'savers',
]