Changes since 20080430:
* Fix uninitialized pointer causing access violation error in
some situations.
* Extend maximum allowed wait time for upgrade upload complete message to
allow for actual time required to upload.
* New API for channel scan.
* Add model detection and model helper functions.
* Use RTP by default so network loss can be detected.
* Add define to enable exporting functions when building a Windows DLL.
* Report reception/network errors when using the
hdhomerun_config save command.
* Increase the minimum signal threshold to approx -83dBuV.
* Fix segfault in hdhomerun_config when a logged channel scan is run under
64-bit Linux.
Changes since 20070914:
* Change status color enumeration to ARGB format.
* Add APIs for obtaining number of channels that match a set of
channel maps.
* Enhance channel scan APIs to use a given set of channel maps.
Applicable changelog from 20070620:
* Tweak signal status color trip points.
* Update DHCP code to return server IP if known.
* Update channel scan to use HDHomeRun auto-modulation detection.
* Update DHCP code to support binding to specific local IP addresses.
* Add signal status color functions.
* Add API to dhcp code to test if operating.
