ignore tag

I have added an ignore route (not really a route because it isn't implemented using the usual route matching code) called ignore which makes it easier to do mashups of rewrite with other tools that have their own restful rewrite components.  

For my project I have a unit test library I got from another developer with it's own custom rewrite controller.  By adding a <ignore>^/test</ignore> tag I can tell the rewrite to not use the rewrite mappings for any GET starting with /test .  I like having this in addition to the static area because the unit test library I inherited has to be installed in the root directory and I like having a separate /static folder.