added all ports summary to tcpconns
added configuration for all ports summary
turn off automatic local port enabling if all ports summary is set
Added a manpage for the AllPortsSummary option
Let the config parser accept unquoted IPv6 addresses.

The parser supports raw IPv6 addresses, optional address and port (as
[<addr>]:<port>), and embedded IPv4 addresses.

Based on "Common Patterns" found in the flex manual.
Merge remote-tracking branch 'origin/pr/488'