Updated javadoc  for 2014-09-12

from http://repository.mygrid.org.uk/artifactory/mygrid-all/net/java/dev/jai-imageio/jai-imageio-core-standalone/1.2-pre-dr-b04-2014-09-12/jai-imageio-core-standalone-1.2-pre-dr-b04-2014-09-12-javadoc.jar