LIBITD-281. Added config in web.xml to fetch XSL location

location of actual xsls is in the filesystem of the server. So the location has to be manually specified in while developing.
context config of the server will have to be changed in production.

https://issues.umd.edu/browse/LIBITD-281
LIBITD-282. Added support for auto generating XSL.

The modification enables the wufoo-connector to identify an unknown form and create a sample xsl from the from so that it can be modified easily to fit actual requirements.

https://issues.umd.edu/browse/LIBITD-282