C.6 Release 0.12b1

New and changed functionality:

• Input files are now mapped (using mmap(2)) if that functionality is available, and if they're determined to be seekable (ie, not a pipe). This should increase the speed of access to large DVI files (but this probably wasn't a huge bottleneck before).
• Modified DviFile::currH and currV so that they now report positions in multiple more useful units. Enhanced library documentation.
• Added dvireport.cc program to report the contents of DVI files (in a different way from the dv2dt suite), which also acts as an example of the use of the library.
• Modify --output so that if there is no `%' character in the `pattern', dvi2bitmap takes this to be the name of the one output file; omitting the `%' was previously an error.
• Added `mark' special; the format of the --query=bitmaps output has been consequently slightly enhanced.
• Modified interface to DviFile::getEvent so that the returned event should be released by a method call, rather than delete.
• Fixed bug which meant DviFile could search for PK files in demented sizes (non-initialised variable...)