Large merge from W. Trevor King, including Gianluca's HTML export.

diff --cc libbe/vcs.py
index 294b8e063e9802cbfeeb1935f445134678ba6f8a,a1d302264700e7993351b3ddda914b8ca50294ab..179339ea40b918aa13d59567e77e43e36ed0f492
--- 1/libbe/rcs.py
--- 2/libbe/vcs.py
+++ b/libbe/vcs.py
@@@ -808,7 -837,7 +837,8 @@@ class VCS_commit_TestCase(VCSTestCase)
  
      def test_revision_file_contents_as_committed(self):
          """Should get file contents as committed to specified revision."""
-         if not self.rcs.versioned:
++        import sys
+         if not self.vcs.versioned:
              return
          for path in self.test_files:
              full_path = self.full_path(path)