Added Test Run feature, View All results page, fix for Issue #46 (validate users in access lists)

- Added a "Test Run" feature, which allows you to run a report and only send notifications to the executor.  This feature allows people to develop and debug reports without temporarily having to remove people from the notification lists (so as not to spam them).
- Made the Reportal data page show a preview of all the query results.  This reduces the number of clicks and allows a person to easily survey all results.
- Removed the Raphael graph stuff, since no one really used it, it doesn't work on most data, and it's buggy

Relevant internal JIRAs: HADOOP-{4146, 4152, 4265}