Initial revision of the IcmpMonitor monitor.

Cyrille
Fixed a layout issue.

Cyrille
Fixed a small typo.

Cyrille
NMS-6732: Add more details to ImapMonitor

- Added doc how the monitor works internal based on the source
Merge pull request #57 from indigo423/NMS-6732-Add-more-details-ImapMonitor

NMS-6732: Add more details to ImapMonitor
Merge pull request #55 from StCyr/cyr-doc-update

NMS-6655: Initial revision of IcmpMonitor documentation