Wasmer

- Fix bug in wapm related to the `package.wasmer_extra_flags` entry in the manifest

Special thanks to [repi](https://github.com/repi) and [srenatus](https://github.com/srenatus) for their contributions!

- [1153](https://github.com/wasmerio/wasmer/pull/1153) Added Wasmex, an Elixir language integration, to the README
- [1133](https://github.com/wasmerio/wasmer/pull/1133) New `wasmer_trap` function in the C API, to properly error from within a host function
- [1147](https://github.com/wasmerio/wasmer/pull/1147) Remove `log` and `trace` macros from `wasmer-runtime-core`, remove `debug` and `trace` features from `wasmer-*` crates, use the `log` crate for logging and use `fern` in the Wasmer CLI binary to output log messages. Colorized output will be enabled automatically if printing to a terminal, to force colorization on or off, set the `WASMER_COLOR` environment variable to `true` or `false`.
- [1128](https://github.com/wasmerio/wasmer/pull/1128) Fix a crash when a host function is missing and the `allow_missing_functions` flag is enabled
- [1099](https://github.com/wasmerio/wasmer/pull/1099) Remove `backend::Backend` from `wasmer_runtime_core`
- [1097](https://github.com/wasmerio/wasmer/pull/1097) Move inline breakpoint outside of runtime backend
- [1095](https://github.com/wasmerio/wasmer/pull/1095) Update to cranelift 0.52.
- [1092](https://github.com/wasmerio/wasmer/pull/1092) Add `get_utf8_string_with_nul` to `WasmPtr` to read nul-terminated strings from memory.
- [1071](https://github.com/wasmerio/wasmer/pull/1071) Add support for non-trapping float-to-int conversions, enabled by default.

Special thanks to [ethanfrey](https://github.com/ethanfrey), [AdamSLevy](https://github.com/AdamSLevy), [Jasper-Bekkers](https://github.com/Jasper-Bekkers), [srenatus](https://github.com/srenatus) for their contributions!

- [1078](https://github.com/wasmerio/wasmer/pull/1078) Increase the maximum number of parameters `Func` can take
- [1062](https://github.com/wasmerio/wasmer/pull/1062) Expose some opt-in Emscripten functions to the C API
- [1032](https://github.com/wasmerio/wasmer/pull/1032) Change the signature of the Emscripten `abort` function to work with Emscripten 1.38.30
- [1060](https://github.com/wasmerio/wasmer/pull/1060) Test the capi with all the backends
- [1069](https://github.com/wasmerio/wasmer/pull/1069) Add function `get_memory_and_data` to `Ctx` to help prevent undefined behavior and mutable aliasing. It allows accessing memory while borrowing data mutably for the `Ctx` lifetime. This new function is now being used in `wasmer-wasi`.
- [1058](https://github.com/wasmerio/wasmer/pull/1058) Fix minor panic issue when `wasmer::compile_with` called with llvm backend.
- [858](https://github.com/wasmerio/wasmer/pull/858) Minor panic fix when wasmer binary with `loader` option run a module without exported `_start` function.
- [1056](https://github.com/wasmerio/wasmer/pull/1056) Improved `--invoke` args parsing (supporting `i32`, `i64`, `f32` and `f32`) in Wasmer CLI
- [1054](https://github.com/wasmerio/wasmer/pull/1054) Improve `--invoke` output in Wasmer CLI
- [1053](https://github.com/wasmerio/wasmer/pull/1053) For RuntimeError and breakpoints, use Box<Any + Send> instead of Box<Any>.
- [1052](https://github.com/wasmerio/wasmer/pull/1052) Fix minor panic and improve Error handling in singlepass backend.
- [1050](https://github.com/wasmerio/wasmer/pull/1050) Attach C & C++ headers to releases.
- [1033](https://github.com/wasmerio/wasmer/pull/1033) Set cranelift backend as default compiler backend again, require at least one backend to be enabled for Wasmer CLI
- [1044](https://github.com/wasmerio/wasmer/pull/1044) Enable AArch64 support in the LLVM backend.
- [1030](https://github.com/wasmerio/wasmer/pull/1030) Ability to generate `ImportObject` for a specific version WASI version with the C API.
- [1028](https://github.com/wasmerio/wasmer/pull/1028) Introduce strict/non-strict modes for `get_wasi_version`
- [1029](https://github.com/wasmerio/wasmer/pull/1029) Add the “floating” `WasiVersion::Latest` version.
- [1006](https://github.com/wasmerio/wasmer/pull/1006) Fix minor panic issue when `wasmer::compile_with` called with llvm backend
- [1009](https://github.com/wasmerio/wasmer/pull/1009) Enable LLVM verifier for all tests, add new llvm-backend-tests crate.
- [1022](https://github.com/wasmerio/wasmer/pull/1022) Add caching support for Singlepass backend.
- [1004](https://github.com/wasmerio/wasmer/pull/1004) Add the Auto backend to enable to adapt backend usage depending on wasm file executed.
- [1068](https://github.com/wasmerio/wasmer/pull/1068) Various cleanups for the singlepass backend on AArch64.

- [713](https://github.com/wasmerio/wasmer/pull/713) Add AArch64 support for singlepass.
- [995](https://github.com/wasmerio/wasmer/pull/995) Detect when a global is read without being initialized (emit a proper error instead of panicking)
- [996](https://github.com/wasmerio/wasmer/pull/997) Refactored spectests, emtests and wasitests to use default compiler logic
- [992](https://github.com/wasmerio/wasmer/pull/992) Updates WAPM version to 0.4.1, fix arguments issue introduced in #990
- [990](https://github.com/wasmerio/wasmer/pull/990) Default wasmer CLI to `run`. Wasmer will now attempt to parse unrecognized command line options as if they were applied to the run command: `wasmer mywasm.wasm --dir=.` now works!
- [987](https://github.com/wasmerio/wasmer/pull/987) Fix `runtime-c-api` header files when compiled by gnuc.
- [957](https://github.com/wasmerio/wasmer/pull/957) Change the meaning of `wasmer_wasi::is_wasi_module` to detect any type of WASI module, add support for new wasi snapshot_preview1
- [934](https://github.com/wasmerio/wasmer/pull/934) Simplify float expressions in the LLVM backend.

- [968](https://github.com/wasmerio/wasmer/pull/968) Added `--invoke` option to the command
- [964](https://github.com/wasmerio/wasmer/pull/964) Enable cross-compilation for specific target
- [971](https://github.com/wasmerio/wasmer/pull/971) In LLVM backend, use unaligned loads and stores for non-atomic accesses to wasmer memory.
- [960](https://github.com/wasmerio/wasmer/pull/960) Fix `runtime-c-api` header files when compiled by clang.
- [925](https://github.com/wasmerio/wasmer/pull/925) Host functions can be closures with a captured environment.
- [917](https://github.com/wasmerio/wasmer/pull/917) Host functions (aka imported functions) may not have `&mut vm::Ctx` as first argument, i.e. the presence of the `&mut vm::Ctx` argument is optional.
- [915](https://github.com/wasmerio/wasmer/pull/915) All backends share the same definition of `Trampoline` (defined in `wasmer-runtime-core`).

- [952](https://github.com/wasmerio/wasmer/pull/952) Use C preprocessor to properly hide trampoline functions on Windows and non-x86_64 targets.