mon/MonCap: bootstrap-* need to subscribe to osdmap, monmap

Signed-off-by: Sage Weil <sage@inktank.com>
mon/MonmapMonitor: remove unused label

mon/MonmapMonitor.cc: In member function 'bool MonmapMonitor::preprocess_command(MMonCommand*)':
mon/MonmapMonitor.cc:273:2: warning: label 'out' defined but not used [-Wunused-label]

Signed-off-by: Sage Weil <sage@inktank.com>