IniFile fix: checking for false ~= checking for nil

false is a perfectly valid setting for one of SM's ini files.  The code here needs to ensure that both the key (string) and the value (string, numeric, boolean) read from file exist.  It would previously halt if the value was set to false.  This fixes that by explicitly checking for nil.

Themes/_fallback/Scripts/01 IniFile.lua

@@ -42,7 +42,7 @@ local RageFile =
 IniFile = 
 {
 	StrToKeyVal = function( str )
-		local _, _, key, value = str:find( "(.+)=(.*)" )
+		local key, value = str:match( "(.+)=(.*)" )
 
 		-- key is always a string, but value may be num, bool, or nil.
 		-- do a few quick checks to see which one it is.
@@ -80,7 +80,7 @@ IniFile =
 			--ignore comments.
 			if not str:find("^%s*#") then
 				-- is this a section?
-				local _, _, sec = str:find( "%[(.+)%]" )
+				local sec = str:match( "%[(.+)%]" )
 
 				-- if so, set focus there; otherwise, try to
 				-- read a key/value pair (ignore blank lines)
@@ -91,7 +91,7 @@ IniFile =
 					--Warn( "Switching section to " .. sec )
 				else
 					local k, v = IniFile.StrToKeyVal( str )
-					if k and v then current[k] = v end
+					if k and v ~= nil then current[k] = v end
 				end
 			end
 		end