v0.3.1a1

What's Changed

• Correct a few more typos and update docs by @LaurentAjdnik in #86
• Support external functions in generator by @SamarSha in #76
• Improve error handling for invalid external function calls by @SamarSha in #89
• Update PyPI package metadata by @idavis in #87
• Create pyqir metapackage for PyPI by @idavis in #90
• Fix issue template paths by @idavis in #91
• Prepare for 0.3.1 release by @idavis in #93

Full Changelog: v0.3.0a1...v0.3.1a1