CoffeeTableEspresso

Breaking Changes: - `str->replace` now returns a second value: the number of replacements done. - `echo` can now print out a variable number of expressions. - destructors for user data...

If the size increases, fills with `undef`, if it decreases, loses values.

`->` would be a good symbol to use in match expressions and in `lambdas`, which unfortunately does not work when it is used for method calls as well. Swithc to...

currently, it is awkward to iterate over variadic arguments from the C API. Improve this.

Currently, the comprehension assumes it is the only thing on the stack, which may not be correct: ``` const x = [ 1, 2, 3, 4, 45, [60] ] echo...

This would allow more concisely writing things that currently require a `if ... else ...` statement

Currently, stack traces include line numbers for where things went wrong, but not the names of function calls themselves. This change would let us also see the names of the...