Cleaned up http server in plex timeline

Was using the global http instance. As we will need this for other
things, plex timeline (and any other target) should instance its own
version.
Register itself as a writer for the default logger
Merge branch 'master' into clog_genericlog
Merge branch 'master' into onkyo
Merge branch 'clog_genericlog' into onkyo
Added clog tests with default logger
Removed *_test.go from .gitignore
Merge branch 'clog_genericlog' into onkyo