Merge pull request #88 from kw-udon/nested-comment

Support nested block comments

Author: MicahChalmer

rust-mode.el

@@ -64,7 +64,7 @@
 
     ;; Comments
     (modify-syntax-entry ?/  ". 124b" table)
-    (modify-syntax-entry ?*  ". 23"   table)
+    (modify-syntax-entry ?*  ". 23n"  table)
     (modify-syntax-entry ?\n "> b"    table)
     (modify-syntax-entry ?\^m "> b"   table)