Checking in changes prior to tagging of version 0.18.

Changelog diff is:

diff --git a/Changes b/Changes
index 685b80f..521f344 100644
--- a/Changes
+++ b/Changes
@@ -2,6 +2,9 @@ Revision history for Perl extension Compiler-Lexer.

 {{$NEXT}}

+0.18 2014-04-06T09:12:56Z
+     - fixed some bugs (regex option or glob operator and so on)
+
 0.17 2013-12-15T10:10:37Z
      - supported WhiteSpace token when verbose option is enabled