Host event IDs are not globally unique

Tested this with Shinken 2.4.2 on Debian 8.

Shinken docs for standard macros say that $HOSTEVENTID$ and $HOSTPROBLEMID$ are globally unique numbers associated with the host’s current state/problem state, incremented by one every time a host (or service) experiences a state change/transitions from an UP or OK state to a problem state.

The problem is that this is not how Shinken actually works, because I have experienced multiple cases where a host had the same event ID as another host in an older event. It's like the event ID is actually local to the host, not globally unique to all hosts.

[renankof]

+1

[naparuba]

True. they are standard int, we should change them to uuid, will be naturally unique.