Squashed 'plugin/floo/common/' changes from 08988dd..208b6be

208b6be Fix ignores.
f1303ad should be a debug
68fd8a4 fix add-buf command and others

git-subtree-dir: plugin/floo/common
git-subtree-split: 208b6be1b8c855204b029cef6fc031e71a10694a
Merge commit 'e6efb73abbc0f7ba13b59d4ff2eb8edda780b1b9'
Take vim specific things out of common. Whoops.