== Bugfixes and Updates ==
* PrequelD
* Cleaned up the use of Verbosity levels.
* Improved log messages.
* Added support for the new pd_v1ShouldHash() function. See below.
* PD_peerdist1
* Fixed bugs in readCacheHdr()
* The code was reading input using fgets(), which will not read
binary data correctly at all. Changed calls from fgets() to
fread().
* Added the pd_FreshCache error code, because in some cases having an up-to-date cache file is a valid reason to return an error.
* Added the pd_v1ShouldHash() function.
* Tests weather or not a given source file should be hashed.
* Returns an error code if the source file cannot be opened or is too small to be hashed.
* Returns an error code if the cache file exists and is up to date.