Changes for 1.19.3 (2026-07-29)

  Bug fixes.

  * In the `rege-vit' tool, fixed iterating over nonterminal symbols in a
    nonterminal symbol class when they expand to terminal symbol sequences
    of various length. Modified the manual sections [Examples of Bottom-Up
    Parser Invocation] and [Files bu-td-uni-alt-1.rg] according to changes
    to a chain of grammars generated from the bottom-up template grammar
    "bu-uni-alt-1.rg" with the help of the updated `rege-vit' tool.

  * Fixed installing files that go to the
    "$prefix/local/share/qsmm/samples/gram/" directory by mistake also
    going to the "$prefix/local/share/qsmm/samples/" directory.