command/agent: added SERF_LAMPORT_TIME to the environment for user event handlers.
command/agent: Added a new test for user event handlers.
command/agent: renamed SERF_LAMPORT_TIME to SERF_USER_LTIME.
Merge pull request #69 from mcroydon/expose-lamport-time

Expose Lamport time to user event script handlers.
Minor doc update to agent options

Swapped `defaults to` over `details to`
Merge pull request #73 from jpfuentes2/patch-1

website: Minor doc update to agent options
DOC: update security.html.markdown (Yogi Berra begone!)
Merge pull request #74 from y-p/PR_doc_tweak

website: update security.html.markdown to be clearer
added node animation to website
mobile fallback for hero animation
command/agent: Fixing compatibility with upstream Memberlist
Support binding to IPv6 address. Fixes #72
Adding dynamic ports, requires new protocol version in Memberlist
website: Update security notes to reflect latest Memberlist changes
website: update the compatibility matrix
CHANGELOG updates
command/agent: format IPv6 address nicely
command/memebers: Expose port, format IPv6 nicely
website: Document dynamic port support. Fixes #36
CHANGELOG updates