[TH] Nodes for grid, custom styling, and custom icons 1.1.1 Patch Level 1

Bugs fixed:

• Text color for subnode drop downs with background image fixed
• Inconsistincies with node last post avatar and node grid fixed
• Background overlay issue fixed
• Fixed an issue where node layout separators would render the word "separator" if node grid was disabled
• Fixed node styling on category view

Bugs fixed:

• JavaScript incompatibilities with IE 11
• Styling fixes

Bugs fixed:

• Overflow issue with FireFox
• Default value not set correctly for default node grid

Enhancements:

• Refactored the way node styling is cached, now creates a template th_nodeStyling_nodes.css that contains all of the necessary styling. This template should not be edited manually as it will cause issues down the road when you change values through the UI