refactor search methods into common search.js file.start on making ajax-based search from the index page.state of things: now merging across assessments and including question-level metadata
refactor into reusable methods such that queries can be constructed from different form interfaces.
fix the optional "include questions" checkbox so that it actually toggles the option.
added support for merging response data with question-level metadata
only include checked metadata
add dataquery construction via js.used in the first XSL-housed style sheets