Description of problem: There should be a method to cancel uploads, as a TM import can take a long period of time, and there may be a valid reason for the user to stop the process without having to F5 the page. There's a $request->abort method which can be tied to a button or similar. Version-Release number of selected component (if applicable): Dev
Reassigned to PM
Migrated; check JIRA for bug status: http://zanata.atlassian.net/browse/ZNTA-218