Undertow: lots of code movement but only a couple of functional changes

The functional changes were:
1) Offload blocking requests to worker threads using exchange.dispatch
2) Use default numbers for IO/worker threads

The rest of this commit is just shifting code around.  Individual handlers
went into their own classes.
mysql: Allow connect from localhost.
Updating PLAIN framework

Added pipelining support and db, update tests.
Added fortunes test to PLAIN
Update Undertow version

Gives a slight speed boost due to path handler improvements
Don't use snapshot netty version

This at least allows the test to run. This is not the most
recent version of netty as it appears the API changed between CR and final.
Don't use MediaType.toString()

The result is not cached and it is really slow (according to yjp about 13%
of CPU time).
Merge pull request #386 from stuartwdouglas/master

Update Undertow version and use non-snapshot version of netty
Merge pull request #385 from weltermann17/updating-plain

Updating PLAIN (all tests now, pipelining)
Add Windows support for Scala & Java frameworks

Added support for most (all?) remaining Scala & Java based frameworks.
cpoll_cppsp: update to cppsp 0.2.3 (adds "date" HTTP response header)
re-enabled query cache of ringo-sqlstore

see https://groups.google.com/d/msg/ringojs/Ji7BFWyODYQ/s_mb9hIY9pcJ resp. https://github.com/TechEmpower/FrameworkBenchmarks/issues/289#issuecomment-20669224 for an explanation of what the query cache does.
added 3 test cases, Fortunes, Data updates and Plaintext.
Merge pull request #393 from treefrogframework/master

treefrog: added 3 test cases, Fortunes, Data updates and Plaintext.
Merge pull request #389 from xaxaxa/master

cpoll_cppsp: add "date" HTTP response header (update to cppsp 0.2.3)
Merge pull request #388 from KevinHoward/master

servicestack: Added Windows Self-Host project and update README.md file.
adding go falcore benchmark
Merge pull request #394 from smw1218/falcore

Adding go falcore benchmark
Merge pull request #384 from methane/master

mysql: Allow connect from localhost.
Merge pull request #387 from kppullin/scala-win

Add Windows support for Scala & Java frameworks