v1.5.0 Preview 2

What's Changed

• Revert windows 64bit back to MSVC. by @e6nlaq in #282
• Supports variable types longlong and int64_t as input by @e6nlaq in #284
• Corresponds to \" in string. by @e6nlaq in #286
• Added functions rand and set_rand by @e6nlaq in #287
• Added ascii functions, ord and chr by @e6nlaq in #289
• Added subscript access function at by @e6nlaq in #291
• Correspondence of function ord to :. by @e6nlaq in #293
• Add function len by @e6nlaq in #295
• Support for characters larger than 2 bytes by @e6nlaq in #298
• v1.5.0 Preview 2 is released by @e6nlaq in #299

Full Changelog: v1.5.0-pre1...v1.5.0-pre2