Downgrade camel-spring-ws to use a Spring 3.0 compatible version of spring-ws

Spring WS 2.0.3 is the last release that supports Spring 3.0.
Any newer release requires Spring 3.1.0+ onwards.

We should use this version in the Camel 2.10 release so we have an out of the box camel-spring-ws component that works for any Spring users.