v0.1.0-alpha.14

Full Changelog: v0.1.0-alpha.13...v0.1.0-alpha.14

Relevant changes

• feat(errors): add postfix ! as syntactic sugar for throwing calls (ced3d49)
• feat: add slice operator for vectors and strings (f69ad9f)
• feat(globals): allow mutation of composite globals, keep bindings immutable (f5fc897)
• fix(regions): forbid retargeting of literals into global region (#6) (c907588)