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This is a major rewrite of a lot of code.
CvsGraph reads the repository file directly, which enables the proper evaluation of the tree structure in the repository when revision numbers are not in order. Branches are compacted horizontally so that a tree with many branches doesn't take too much space. Branches with no revisions are shown. Branches and revisions which are not in sequence or do not start at 1.1 are properly plotted. Minor configure updates, implementation of imagemaps, an ability to generate HTML that allows linking in the form of imagemaps, changes to some configuration parameters, and an ability to add custom expansion string from the command-line using -[0-9].
The executable has become significantly larger because of table optimization in flex. You can disable the optimization in configure with '--disable-speed'. This will slow the execution, but reduce the size.