Fixes JIRA issues SGF-271 - <cq-listener-container> element missing the ...

...'auto-startup' attribute, SGF-275 - <cq-listener-container> element's phase attribute is ignored, SGF-278 - ContinuousQueryListenerContainer class's 'taskExecutor' property is not set properly by the GemfireListenerContainerParser, SGF-279 - <cq-listener-container> element is missing the 'error-handler' attribute, and finally, SGF-280 - the ContinuousQueryListenerContainer class is not Thread-safe.