Add CrossTabQuery and move DynamicDataView  to DynamicForm class

This is necessary to allow for other form types to use dynamic data
view/export
Add support for user data export
Add export routine to TextareaField

Sanitize textarea content on export
Add ability to pass output file to result set exporter

This is necessary in case the exporter wants to redirect output to a file.
Use built-in PHP functions to encode and output CSV content
Support organization export
Show account manager on org profile
Merge pull request #791 from protich/feature/org-export

Organizations export

Reviewed-By: Jared Hancock <jared@osticket.com>