Complete the ASP integration

[FredCK]

The ASP integration must be compliant with our standard "Server Side Integration" requirements, as defined at ServerSideStatus.

[alfonsoml]

The changes in [413] and [417] have done almost all of the requirements for asp, except for the "Check images" in the connector, but that feature should have its own ticket.

[fredck]

For "Check images", Wiktor has implemented a simple solution for the PHP and ColdFusion connectors. He's checking the first Kb of data in uploaded images, looking for HTML in it.

I have the impression that a similar solution is feasible for ASP too.

[fredck]

I've implemented the XSS check with [914]. The ASP implementation should now be 100% completed.