add a cython based focused line monitor
add a cython based focused line monitor
clean up
Merge remote-tracking branch 'origin/cython-focused-line-monitor' into cython-focused-line-monitor

Conflicts:
	pikos/cymonitors/focused_line_monitor.pyx
add a pxd file
fix typo
Merge pull request #71 from enthought/cython-focused-line-monitor

Cython based focused line monitor