Add editorconfig file for MW defaults

and tidy eol w/s

.editorconfig

@@ -0,0 +1,12 @@
+root = true
+
+[*]
+indent_style = tab
+indent_size = 4
+end_of_line = lf
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true
+
+[*.md]
+trim_trailing_whitespace = false

SimpleMathJaxHooks.php

@@ -36,8 +36,3 @@ class SimpleMathJaxHooks {
 		return ["<span style='opacity:.5'>[math]${tex}[/math]</span>", 'markerType'=>'nowiki'];
 	}
 }
-
-
-
-
-