HashTable internal: Use HashContainer::contains.
Merge branch 'master' of https://github.com/kohler/click
IPRewriter: Rename 'mappings' handlers to 'table'.

Better name.
TCPRewriter: add lookup handler

This handler takes in a flow as a space-separated

	saddr sport daddr dport

and looks for a forward mapping for that flow.  If found, it returns the
rewritten flow in the same format.  This is useful when using a TCPRewriter
to divert traffic to a proxy in userland.  It allows the proxy to figure out
the original destination for the flow, similar to SO_ORIGINAL_DST for
Netfilter or SIOCGNATL for IP-Filter.
Merge pull request #92 from pallas/master

TCPRewriter: add perform_mapping handler
Avoid unused variable warning
click-buildtool internals: Print #include directives in a stable order.

Rather than in order of hash table inclusion, which isn't stable and
caused problems at Meraki for Jim Roewe and Cliff Frey.
Internal: Use a helper function to parse elementmaps for a package.
Improve click-mkmindriver performance with packages.

* Actually add package elements to the list of requirements.
* Use package() to determine which package an element is in, not
  some jankass crap.
* Also, -V reports which elementmaps were parsed.

Von Cliff complainert.
Merge branch 'master' of https://github.com/kohler/click