[Building Sakai] Change in provided hibernate dependency

[David Horwitz]

  Hi All,

I have updated the ehcache version used by the 1.3.0-SNAPSHOT kernel 
(trunk) to use ehcache 1.7.2. This is the latest (and last) release of 
the 1.X series of ehcache. This has resulted in a change of the 
co-ordinates of the ehcache artifact provided by the kernel and master 
dependency management. The new location is:

<groupId>net.sf.ehcache</groupId>
<artifactId>ehcache-core</artifactId>

The artifact id was ehcache.

On this note I discovered many projects in core needlessly declare 
ehcache as a dependency.  You only need declare it if you explicitly use 
ehcache (e.g. by creating a cache). If you simply use hibernate please 
do not specify ehcache as an explicit dependency.

Regards

David