Enhanced documentation of getString() in core Sandbox API
Enhanced documentation of getString() in core Sandbox API

Clarified the introduction sentence, and added a paragraph at the end of the
function description stating that the language defaults the language of the
application (which was only stated in the description of the parameter).

eric-brechemier/lb_js_scalableApp,eric-brechemier/lb_js_scalableApp,eric-brechemier/lb_js_scalableApp