3 unit display related changes

This pull request really contains three different changes.

1. Unit configuration page.
This is slow to load and parameter filtering is laggy. Added a configuration parameter in xaps-web.properties to remove automatic parameter filtering for every button press and instead use button and enter in the filter field to activate the filter. Also changed the first rendering of all parameters to only render the default (show configured) instead of rendering all parameters and then using javascript to hide parameters. Gives faster page load.

2. Unit configuration page.
Page reload happened of the entire page when a change was made to the select in "move to". Removed this since nothing seemed to change for the page reload. The button still had to be pushed to activate the move.

3. Unit dashboard and unit history
Added an option in the xaps-web.properties to hide the voip and hardware syslog messages since these only support pingcom devices and the messages format from such.

(I am not a git poweruser and apologize for any anomalies in git usage. I welcome all kinds of feedback in this area)