Sent to Bram for inclusion in Vim 8.2

Sent to Bram

Sent to Bram

We missed the sneaky beta-less Vim 8.1 release.

Sent to Bram.

Included in Vim 8.0 release

Sent to Bram for Vim 8.0 release

Merge pull request vim-ruby#153 from Ichimonji10/master

fix and reformat installer

Remove no longer relevant FIXME comment

Whitespace fix

resolve a typo in the configuration initialization section