renamed all the metricType stuff into DailyVal
element dropdown now updates dynamically between Datastores & infrastructure hosts
the element dropdown will now switch between Agent Systems & VMwareObjects depending on the queryType.
added the initial osperf-Mem & osperf-Cpu queries into getmetrics.php
add xenserver queries
seperated xenserver metrics into their own 'getxenmetrics' page and implemented xenserver-Mem for now.
added some more xenserver metrics