must call super.start() in ServerSocketAppenderBase

Duh.
added missing StatusChecker class
ServerSocketAppenderBase must invoke super.stop()

Duh.
improved logging in RemoteLoggerStreamClient
improved logging in ConcurrentServerRunner
removed stray diagnostic println
removed some assertions from run method
added ServerSocketAppender classes
updated DefaultNestedComponentRules to handle SSLServerSocketAppender

SSLServerSocketAppender has an "ssl" property of type SSLConfiguration.
Merge pull request #94 from ceharris/LOGBACK-823

LOGBACK-823: add ServerSocketAppender classes to classic
Merge pull request #95 from ceharris/LOGBACK-824

LOGBACK-824: add ServerSocketAppender classes to access
indentation changes
Merge branch 'master' of github.com:qos-ch/logback
final touches on LOGBACK-796
no use checking for collisions if either fileName or  fileNamePattern are null
migrated scala tests to use java
remove vestigal references to scala
Merge branch 'master' of github.com:qos-ch/logback into LOGBACK-625

Needed some missing classes from logback master.