GEOT_4792: optimizations for the JDBCDataStore.ensureAuthorization method
Change compile target to 1.7
Merge pull request #450 from mbarto/geot_4792_ensureauthorization_improvements

GEOT_4792: optimizations for the JDBCDataStore.ensureAuthorization method
[GEOT-4689] auto-wrap option breaks before/after parentheses
[GEOT-4795] CRS.transform(envelope, targetCRS) fails to transform correctly over the polar stereographics
Logging registration of JAI ImagingListener [GEOT-4797]

ImagingListener used as a bridge from JAI error messages to GeoTools logging system.

See https://jira.codehaus.org/browse/GEOT-4797 for discussion.
Fix up javadocs around GeoTools init method