* webui: make d_echo work in webui
Remove d_print_r(), it is redundant to d_echo()
Remove d_echo calls in services.inc.php
* Switched debug check to work with nginx
- Moved check-services.php to a poller module
- Added performance data collection to the poller
- Centralised DB functions to includes/services.inc.php
- Created add/edit/delete functions off the device, services page
- Removed legacy edit/delete interfaces.
- Moved and modified check.inc scripts
- Documentation Updates
- Modified services table