Payloads related feature requests

MHN is great, I mean really great. However, a few things need to be improved/added because they makes our life a nightware...

• In payloads, add a view to get information regarding the sensor event payload. Ex: dionaea could give a button to download the file, shockpot could display web query, etc...
• Give a chance to remove events with checkboxes
• In payloads, we currently have only 3 sensors available. Shockpot isn't there even if installed.
• In payloads, add the date as a new column

I know the information is here, stored with help of hpfeed. Currently we need to play with mongodb to retrieve that information while it could be really simple in the web UI.