Add default log appender (fix #931)
Merge branch 'master' of github.com:jon-stumpf/traccar into enhancement-eliminate-hardcoded-protocol-names
Merge branch 'enhancement-eliminate-hardcoded-protocol-names' of github.com:jon-stumpf/traccar into protocol-esky-610
Merge branch 'protocol-esky-610' of github.com:jon-stumpf/traccar into protocol-mobilmax