cvslog 1.47

Lots and lots of changes in this version, which was prompted by an extensive set of patches from Dave Clendenan (thank you!). The main highlights are the addition of support for including cvsweb URLs and including version numbers in the summary of modified files.

Also fixed in this version is the handling of diffstat and diff output for binary files when multiple files are committed at once, the parsing of file names that contain whitespace or commas, and a few other more minor things.