snapshot-117: MacVim Snapshot 117

Binary targets macOS 10.8+

- Vim patch 8.0.0106
- Fixed feedkeys in timer callback
- [Experimental] Automatic Python settings
  - Python 2.7.x: Homebrew python2 or System's
  - Python 3.5.2 or later: Homebrew python3 or python.org binary

Script interfaces have compatibility with these versions

- Lua 5.2
- Perl 5.16
- Python2 2.7
- Python3 3.5.2
- Ruby 2.0