Merge pull request #706 from groldan/master

[GEOS-6468] (master) Make GWCLifeCycleHandler behave correctly on application shutdown.
Revert "Make GWCLifeCycleHandler behave correctly on application shutdown."

This reverts commit 88bb8b98 until figuring out why it breaks the build.
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For details see https://github.com/geoserver/geoserver/wiki/GSIP-118

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Restore "Make GWCLifeCycleHandler behave correctly on application shutdown."

This reverts commit 87ecb035dd45e5a56d051f704c1af47421b46bbf and fixes
the test errors by adding depends-on="gwcFacade" to the GWCLifeCycleHandler
bean definition.