Javadoc fix, unused import nix.

src/java/com/samskivert/depot/EHCacheAdapter.java

@@ -37,10 +37,10 @@ import net.sf.ehcache.event.CacheEventListener;
 import static com.samskivert.depot.Log.log;
 
 /**
- * An implementation of {@link CacheAdapter} for ehcache where each {@link CacheCategory} results
- * in one {@link Ehcache}. All (cacheId, key) combinations within one category is stuffed into the
- * same {@link Ehcache}, and all elements are cached under {@link EHCacheKey}, which basically
- * wraps just such a tuple.
+ * An implementation of {@link CacheAdapter} for ehcache where each
+ * {@link CacheAdapter.CacheCategory} results in one {@link Ehcache}. All (cacheId, key)
+ * combinations within one category is stuffed into the same {@link Ehcache}, and all elements are
+ * cached under {@link EHCacheKey}, which basically wraps just such a tuple.
  *
  * Thus there are currently only three Ehcaches in play, called 'depotRecord', 'depotKeyset', and
  * 'depotResult'. These must be defined in your ehcache.xml configuration. If you use distributed

src/java/com/samskivert/depot/PersistenceContext.java

@@ -34,7 +34,6 @@ import com.google.common.collect.Sets;
 
 import com.samskivert.io.PersistenceException;
 import com.samskivert.util.StringUtil;
-import com.samskivert.util.Tuple;
 
 import com.samskivert.jdbc.ConnectionProvider;
 import com.samskivert.jdbc.DatabaseLiaison;