Sonatype format only - no functional changes
cleanup jetty.xml configuration files

Includes:

- adding InstrumentedSslSelectChannelConnector for ssl example usage
- remove all mentions of org.sonatype.sisu.jetty.custom.DisableTagLibsListener hackery - this taglib junk is no longer triggered in current Jetty
- simplified xml config in many places
- improved jetty-jmx.xml in particular to make it out-of-box usage friendlier
- improved jetty dual ports ssl example - it wasn't really working for me at least and changes reflect a more current best practice to handle enforcing ssl
code formatting only - no funct changes
mentioned preferred port for jmx
minor formatting tweaks
rename to better describe purpose
add kitchen sink example combining https, remote jmx and access logging
reformat only
tweaks docs
cleanup
fix typo setting handler
Merge pull request #175 from sonatype/nexus-5965-jetty-xml-cleanup

REVIEW: NEXUS-5965 - jetty xml cleanup

- generally update for Jetty 8 and simplify config
- remove jetty DefaultHandler as from my debugging it is never called upon or needed anyways
- add InstrumentedSssChannelConnector/doStart support for ssl example
- add InstrumentedHandler around NexusWebappContext to expose metrics
- remove disable taglib hackery and support class
- remove https redirect support class not used and obsolete
- apply sonatype formatting
- fix https redirect examples to use modern security constraint strategy
- rename some example files to better describe purpose ( I think)
- make jmx example work better out of box
- add kitchen-sink example that combines jmx, https enforcement, and access logging all-in-one