Add REUSE_ADDRESSES to proxy test case
Add the ability to run tests multiple times
Don't allow Connection: close from the client side to close the backend connection
Minor proxy improvements
Don't modify the Connection: header if the backend has closed the connection
Remove client mode check in web socket container.

It just seems to have caused more problems than it is worth
Prevent buffer leak if ServletPrintWriter.close() is called twice
UNDERTOW-230 Nullpointer in OrderedExecutor.execute()
Fast path the charset encoding for charsets where the first 128 characters are known to map to ASCII
Do fast path encoding in a single loop
Make port numbers optional in the client
UNDERTOW-231 Allow for empty close message
changes to the way path matching works

added trailing slash removal
added shared path normalizing (leading and trailing slashes)
added test cases for path matcher

these modifications should ensure that novice users of the embedded api don't run into problems with trailing slashes on the path handler
UNDERTOW-236 Setting the content length after the response has started does not make the ServletOutputStream automatically close
Fix bug in servlet Writer fast path

Also change the behaviour of the fixed length channel to fully write out as much as possible, and only throw an exception if the remaining is zero.