updated for version 7.3.1028
Problem:    New regexp performance: Copying a lot of position state.
Solution:   Only copy the sub-expressions that are being used.
Added tag v7-3-1028 for changeset 4d81fdda8f35
updated for version 7.3.1029
Problem:    New regexp performance: Unused position state being copied.
Solution:   Keep track of which positions are actually valid.
Added tag v7-3-1029 for changeset e7016af0cbf9
updated for version 7.3.1030
Problem:    Can't build for debugging.
Solution:   Fix struct member names.
Added tag v7-3-1030 for changeset d1f3c77159f9
updated for version 7.3.1031
Problem:    Compiler warnings for shadowed variable. (John Little)
Solution:   Move the variable declarations to the scope where they are used.
Added tag v7-3-1031 for changeset 96c1a7850097
updated for version 7.3.1032
Problem:    "\ze" is not supported by the new regexp engine.
Solution:   Make "\ze" work.
Added tag v7-3-1032 for changeset f262fb02889d
updated for version 7.3.1033
Problem:    "\1" .. "\9" are not supported in the new regexp engine.
Solution:   Implement them.  Add a few more tests.
Added tag v7-3-1033 for changeset b2a8e3a66f8c
updated for version 7.3.1034
Problem:    New regexp code using strange multi-byte code.
Solution:   Use the normal code to advance and backup pointers.
Added tag v7-3-1034 for changeset 37e444aeb33b
updated for version 7.3.1035
Problem:    Compiler warning on 64 bit windows.
Solution:   Add type cast. (Mike Williams)
Added tag v7-3-1035 for changeset 626e9ccb7c48
updated for version 7.3.1036
Problem:    Can't build on HP-UX.
Solution:   Give the union a name. (John Marriott)
Added tag v7-3-1036 for changeset b22bff1a6af8
updated for version 7.3.1037
Problem:    Look-behind matching is very slow on long lines.
Solution:   Add a byte limit to how far back an attempt is made.
Added tag v7-3-1037 for changeset 7a2be4a39423