Added Lua method pointsForCardinalSpline() to MOAIMath.  Added Lua method drawBeveledLineLoop() to MOAIDraw. Formatting of various Lua methods in MOAIDraw.cpp.
Added documentation to MOAIDraw::DrawBeveledLines() and changed it to eliminate extraneous vertices when rendering sharp angles.
Eliminated several rendering errors in and added documentation to MOAIDraw::DrawJoinedSegment().
Modified the gradient rendering Lua methods of MOAIDraw to accept MOAIColor objects as well as numbers to define colors.
Renamed variables l1, l1n, l2 and l2n to line1, line1Normal, line2 and line2Normal in all functions where they appear in MOAIDraw.cpp.
Implemented Lua method drawBeveledLineLoop() and helper method DrawBeveledLineLoop() in MOAIDraw.