[NEXUS-6027] Remove deprecated methods from MimeSupport
Remove unused statics from ContentPlugin
Merge remote-tracking branch 'origin/master' into NEXUS-6027-remove-deprecated
Remove unused clearCache() from DefaultLvoPluginConfiguration
Remove unused field from AbstractRemoteDiscoveryStrategy
Drop useless test
Drop unused logger declaration
Remove unused QueryStrings class
Fix overriden method in ValidHTMLJettyDefaultServlet
Remove unused statics from SiestaPlugin
Remove unused/unimplemented deploySiteBundle() from SiteRepository
initial support for logback based request logging
Remove unused code from Timeline plugin
add jmx jetty config such that it can be specified as an app parameter
remove faster windows example

The only difference was one property value, so documented this at

https://support.sonatype.com/entries/30167973

in the rare case this is needed.
remove header buffer size example

not only has the default header buffer size changed from stated 4 k to 6 k in Jetty 8, I don't even think the hack this was working around even applies anymore. According to https://docs.sonatype.com/display/SPRTNXOSS/Jetty+Configuration#JettyConfiguration-IncreasingJetty'sheaderbuffertocopewithUIcolumnresizing a http request header was used to send column sizes to the backend? I did a bunch of table column resizing and didn't notice a thing.

Further in the past 10 months, I never heard this come up once from a customer.
with new jetty-requestlog.xml, we don't need this example anymore
remove jetty.xml copy of ../jetty.xml

any administrator can either restore the original from the original bundle, or make a copy before they start editing the real one
JMX doc tweaks and use <Property/> instead of <SystemProperty/>
jetty-https.xml that is includable as an app parameter

this adds an https connector in addition to the already defined HTTPConnector