Rainrider:
	- warrior: propose refreshing rend only if it is cast by the player
	Partially fixes gh-123
Adirelle:
	- Trailing whitespace removed.
	- Fixed HIGHLIGHT_MEDIATYPE upvalue in Core.lua.
	- Embeds SharedMedia_ButtonHighlight in SMBH\ instead of ilbs\SharedMedia_ButtonHighlight\ to shorten the path.
	Hopefully fixes GH-119.
	- Use SharedMedia_ButtonHighlight instead of shipping our own textures.
	- Updated README.md regarding feedback.
