snapshot-150: MacVim Snapshot 150

Binary targets macOS 10.8+

- Vim patch 8.1.0235
- Touch Bar support #715
- Force click support #716
- New guioption 'k' #708
- Fix CoreText renderer

Script interfaces have compatibility with these versions

- Lua 5.3
- Perl 5.18
- Python2 2.7
- Python3 3.7
- Ruby 2.5