Suppress verbose messages from port allocation by default

[mfojtik]

This will suppress the 'ports' message during gear list-units:

[root@dev vagrant]# gear list-units
ports: searching block 41, 4000-4099
ID                   SERVER  ACTIVE  SUB     LOAD    TYPE

You can turn the messages on just by exporting the 'GEARD_VERBOSE' environment variable. @smarterclayton -> do you think we can use that ENV var on more places, to turn off the debug messages?

[smarterclayton]

Just comment out the debug - the extra lines of code necessary to do the message seems wrong to me.

[mfojtik]

@smarterclayton done.