SEC-2732: Update net.sf.ehcache:ehcache-core dependencies to use net.sf.ehcache:ehcache instead

[spring-issuemaster]

Andy Wilkinson (Migrated from SEC-2732) said:

The ehcache team have indicated that they consider ehcache-core to be an internal artifact (this is shown by its move to the net.sf.ehcache.internal group in 2.7.0 and later). Rather than depending on it directly, we should be using a dependency on net.sf.ehcache:ehcache instead.

This change will allow Spring IO Platform to remove its dependency management for ehcache-core.

[spring-issuemaster]

Rob Winch said:

This is resolved in master. I did not put the change into 3.2.x since the latest 1.0.x spring io version did not contain ehcache dependency.