logging: Reducing log level in several places

INFO level is suppose to be used for informational messages that are
useful for ordinary user, but in several places we used it as a DEBUG
output.

In CS the level is reduced even more, to TRACE.

Change-Id: I9058e25d95de79661099dd4624d802cc33420983
core: extend FaceUri with fd, ether, dev schemes

refs #1396

Change-Id: I6680eb2013c335a14c9fa76b965c2d1e63202334