Checkpoint commit for OPENDJ-1288 : 
  Migrate I18n and logging support to i18n framework and SLF4J

* Replace all ErrorLogger.logError calls by LocalizedLogger calls
** Use same logger than for debug logging if already used in class
** No more direct call to ErrorLogger
** All logging made through #error, #warn, #info or #debug methods
 of LocalizedLogger
** Logging method used corresponds to message severity (eg, warn
 is used when there is a WARN_XXX message), although some
 occurences may not match (automatic conversion)
 
* Delete OpenDJLoggerAdapter and OpenDJLoggerFactory classes
 as they have been ported to opendj-slf4j-adapter module

* Update dependencies to use opendj-slf4j-adapter and 
 exclude slf4j-jdk14