snapshot-87: MacVim Snapshot 87

Binary targets OS X 10.8(Mountain Lion), 10.9(Mavericks), 10.10(Yosemite), and 10.11(El Capitan)

- Vim patch 7.4.972
- Import QLStephen to quick-look MacVim file types
- Fix redraw and redrawstatus issue

Script interfaces have compatibility with these versions

- Lua 5.2
- Perl 5.16
- Python2 2.7
- Python3 3.5
- Ruby 2.0