Added option to center output and remove title.
Added option to remove title and center output
Fixed, removed extra parenthesis
Fixed, added calls to center_output
Renamed remove_math_space to rm_math_space
To keep consistent with rest of nbconvert
Made remove math space available as filter.
Filter math symbols in notebook latex also, since
	notebook supports space between $ and
math.
Fixed, latex output no longer verbatim (broke math.)
Fixed center output resource typo
Center latex output if needed.
Removed ugly spacing that was showing b/c verbatim
Removed extra spaces
Fixed output that was not centering.