Decrease (???) version number for 0.18 release

dist.ini

@@ -1,5 +1,5 @@
 name = Selenium-Remote-Driver
-version = 0.18_01
+version = 0.18
 author = 'Aditya Ivaturi <ivaturi@gmail.com>'
 author = 'Daniel Gempesaw <gempesaw@gmail.com>'
 author = 'Luke Closs <cpan@5thplane.com>'