latest gxp to fix boundlessgeo/suite/issues/256
Merge pull request #271 from bartvde/issue-256

make sure GetCapabilities is refreshed when user changes
Adding note about unsupported Ubuntu versions (closes #265)
Fixing bad package remove command (closes #269)
Adding version number to docs (closes #274)
Including gt-process-geometry jar in wps artifact, fixes #282
Adding download link to extensions (closes #298)
Renaming to Application Servers
Setting the Oracle JRE (see #281)
No more reference to PG template (closes #307)
Bump gs to 2.5, gt to 11, gwc to 1.5.1 final

(GT goes to 11😸)
Bump geoserver-exts to 2.5
Update to GS 2.5 exts for real
use gs-prefixed exts
Add gs- prefix to geoserver deps
Fix copy and paste error in pom
Use new id for web-security
One more web-security change
Updated GS to include JDBCConfig workspace fix, Fixes #275
Updating dependnecies in geoserver/web/app to reflect upstream 2.5 modules.

Changes gs-web-sec (that does not exist any more) to gs-web-sec-ldap that pulls
in gs-web-sec-core transitively.