v1.5.0

What's Changed

• Add optcarrot bench (and some optimization) by @hadashiA in #175
• Use mruby-compiler2 rest args patched and updated tests by @hadashiA in #180
• Reduce some array allocations by @hadashiA in #181
• Optimize send by @hadashiA in #179
• Fix optcarrot submodule refs by @hadashiA in #182
• Update dlls by @hadashiA in #183
• Improvement json parsers by @hadashiA in #185
• Slightly refine the Compiler public APIs by @hadashiA in #184
• Make it possible for the Source Generator to skip codegen by @hadashiA in #186

Full Changelog: 1.4.2...1.5.0