Tomcat: v6
Spring Tools Suite: v2.7.2
Spring Framework: spring-webmvc-3.0.5
I think your schemaLocation mapping is incorrect. The namespace is specified as:
xmlns:mvc="http://www.springframework.org/schema/mvc"
which is correct, I believe, but in the schemaLocation you have
http://www.springframework.org/schema/mvc/spring-mvc
http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd
So if you change the first line of the schemaLocation mapping to your mvc namespace, it should work fine.