Fix on handling of multiple license servers. When usage of feature was
not found on first attempt, freezemon used to assume that it could not
be found on other servers. This has now been fixed.

Fix on handling of long user names on certain platforms. A long user
name could lead to "ps" reporting on UID, which would not be
recognized fy freezemon. freezemon can now recognize user on UID as
well as user name.

Previously, freezemon would exit if it failed to run "ps" when
collecting info on processes. Now freezemon will continue running, and
just ignore the cycle when "ps" failed.