This is a new script that can call any function in the built-in AJAX webservice. This is
a new system service that is added at install time (like the mobile webservice). It has no
protocols added to it, but it accessible by a new ajax script /lib/ajax/service.php.
Requests and responses to the script are required to be in json format, and multiple functions can
be called in a single request.
The core_get_string webservice and friends have never passed lang values
properly, (so never worked) and when I fixed that I found they were passing
lang parameter into the lazyload parameter.
