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This release adds several new features, and as such bumps the minor version. Added `lu.traits.udaIndexOf`, upstreamed from importing projects. It functions the same as `std.traits.hasUDA` in that you can use it to tell whether a symbol is annotated with some attribute, but it incurs less template bloat and lowers compilation memory required. As the name implies, unlike `hasUDA` it returns the index of the attribute, or `-1` if it doesn't exist, so it's not a direct drop-in replacement. Added `lu.traits.stringOfTypeOf`, upstreamed from importing projects. A simple template that aliases itself to the string name of a passed type, or the string name of the type of a passed symbol. Added `lu.array.zero`, upstreamed from importing projects. It allows for zeroing out the internal `.data` array of a `std.array.Appender`. This can be useful if these contain indirections, such as an `Appender!(string[])` does, as a built-in call to `.clear()` would never null the pointers, and the memory referenced would be considered live by the garbage collector. Added `lu.string.replaceFromAA`, upstreamed from importing projects. It replaces all occurrences of `$tokens` in a string with values from an associative array. The associative array must be keyed by the token strings, and have values in the form of delegates (or functions) that in turn return replacement strings. This is useful if you want to replace many tokens in a string at the same time, and when organising them into an associative array makes sense. `lu.container.RehashingAA` was fleshed out, and while it can't be called fully complete, it is now much more useful. Notably you can't `foreach` over one as the `opApply` function isn't implemented, but the `.byKey`, `.byValue` and `.byKeyValue` properties are in place and should in the majority of cases be enough. If it isn't, you can always access the underlying internal associative array directly via the `.aaOf` escape hatch. * Refactored `escapeControlCharacters` and `removeControlCharacters` to copy (chunks of) the input string by slice instead of character-by-character * Converted many template constraints into static asserts with descriptive messages * Miscellaneous code cleanup
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