added a better error message.
Made form for submit
updated action attribute in form
Create AJAX request

Conflicts:
	register_config.php
Added download link and prepopulating form
Tweaked files to run on prod. server

Moved config file path and name to config_files.php
Fixed wlux_instrumentation.js to allow empty taskHTML values not just
undefined ones
Fixed logger to look only for data value

fixed study-configuration.php to use config_files.php
Parameter 'mode' added