modified ContextBase to shut down executor service on reset
corrected typo and other bugs in imgaes
listen for connections
Merge branch 'master' of github.com:qos-ch/logback
allow JSSE system properties to influence SSLContextFactoryBean

The JSSE defines several system properties that are used to create key
store and trust store objects for the system default SSL context.  This
commit allows these properties to be referenced as defaults when a
component's SSL configuration does not provide either the key store or
trust store configuration.
Merge branch 'master' of github.com:qos-ch/logback
Merge branch 'LOGBACK-849' of github.com:qos-ch/logback into LOGBACK-849
tests pass
Merge branch 'LOGBACK-848' of github.com:qos-ch/logback into LOGBACK-848