This commit was manufactured by cvs2svn to create branch 'RC_1_31_0'.
Added last minute patch for .*?$ failing in the non-recursive algorithm.
Added more tests to catch some additional regressions.
Fixed typos reported in release candidate.
Added extra acknowledgements
Updated iterator defs
Fixed nasty non-greedy repeat bug
removed unnessary #if
Added extra non-greedy repeat tests
Fixed typo.
Added missing typedefs.
Added typedefs to the index.
Fixed typo.
Don't try to export symbols that don't need it.
Added missing preconditions
Added link to old docs.
Added missing hyperlink target.
Added fix for grepping for POSIX style matches.
Fixes for POSIX regexes not grepping correctly.
Added introductory comment