You can now specify the special theme name `random` and vim-airline will
load a random theme from the ones installed. This works from either your
.vimrc as well as when calling `:AirlineTheme` command directly.
closesvim-airline/vim-airline-themes#170
This is an experimental feature that allows to display the statusline in
the tabline. It might still be a bit rough, but seems to work so far.
Remaining problem:
- Mode changes are not immediately detected, only after moving the
cursor
fixes#1388closes#1867
