v3.1.6

• Fixed issue where the vertical scrollbar would get in front of the up/down buttons.
• Created horizontal scrollbar stylesheet following the same style as the vertical scrollbar.
• Renamed stylesheets and organized their variables.
• Created Python syntax highlighter.
• Updated Curve Library parameter editor window to use Python syntax highlighter.
• Created many new attribute functions. Setters, getters, as well as attribute creation and deletion functions.