Check params before clearing dataStoreCache (GEOS-6575)

https://jira.codehaus.org/browse/GEOS-6575
javadoc and log clarification of DataStoreCache use (GEOS-6575)

Commit logs DataAccess implementation during DataStoreCache dispose.

https://jira.codehaus.org/browse/GEOS-6575

Conflicts:
	src/main/src/main/java/org/geoserver/catalog/ResourcePool.java
[GEOS-6599] Do not log all SerializableRenderedImage misguided attempts to connect to a server
Always reset DataAccess if sql_views used, or if last feature type deleted
Merge pull request #673 from aaime/quiet_jai

[GEOS-6599] Do not log all SerializableRenderedImage misguided attempts to connect to a server
Merge pull request #669 from jodygarnett/rp_param_check

Check params before clearing dataStoreCache (GEOS-6575)
Edit GenericUnWrapper with test (GEOS-6578)

GenericUnWrapper implemented with method reflection, preconfigured unwrap method lookup for several JBoss environments.

https://jira.codehaus.org/browse/GEOS-6578
Guard against NPE in ResourcePool.FeatureTypeCache.dispose(...)
Fix handling of NPE in AdvancedDispatchFilter (GEOS-6529)

NullPointerExcepiton is thrown when geoserver-monitor-plugin is added to geoserver 2.5.1 and additional application-specific plugin servlets are added into geoserver.

http://jira.codehaus.org/browse/GEOS-6529
[GEOS-6604] WMS GetFeatureInfo using 'vendorParams: propertyName' does not working after upgrade to 2.5.x
Updated repository settings for new boundless maven repo.
Removing dead bean definition.

Bean definition refers to old AbstractService class that no longer exists.
Use correct CRS representation and axis order for WFS GeoJSON
Document GEOSERVER_GEOJSON_LEGACY_CRS