janet: Update to 1.11.1

## 1.11.1 - 2020-07-25
- Fix jpm and git with multiple git installs on Windows
- Fix importing a .so file in the current directory
- Allow passing byte sequence types directly to typed-array constructors.
- Fix bug sending files between threads.
- Disable PRF by default.
- Update the soname.

## 1.11.0 - 2020-07-18
- Add `forever` macro.
- Add `any?` predicate to core.
- Add `jpm list-pkgs` subcommand to see which package aliases are in the listing.
- Add `jpm list-installed` subcommand to see which packages are installed.
- Add `math/int-min`, `math/int-max`, `math/int32-min`, and `math/int32-max` for getting integer limits.
- The gc interval is now autotuned, to prevent very bad gc behavior.
- Improvements to the bytecode compiler, Janet will now generate more efficient bytecode.
- Add `peg/find`, `peg/find-all`, `peg/replace`, and `peg/replace-all`
- Add `math/nan`
- Add `forv` macro
- Add `symbol/slice`
- Add `keyword/slice`
- Allow cross compilation with Makefile.
- Change `compare-primitve` to `cmp` and make it more efficient.
- Add `reverse!` for reversing an array or buffer in place.
- `janet_dobytes` and `janet_dostring` return parse errors in \*out
- Add `repeat` macro for iterating something n times.
- Add `eachy` (each yield) macro for iterating a fiber.
- Fix `:generate` verb in loop macro to accept non symbols as bindings.
- Add `:h`, `:h+`, and `:h*` in `default-peg-grammar` for hexidecimal digits.
- Fix `%j` formatter to print numbers precisely (using the `%.17g` format string to printf).


(nia)