Install vim-doc separately on *nix
Separate plugin and vim-doc on Windows deploy
Add utils/utils:get_exe_dir()

Gets full path to the directory where executable of the application
is located.
Use utils/utils:get_exe_dir() in cfg/config

This reduces duplication and removes a couple of if-def statements.
Amend Vim's 'runtimepath' on :help

Thanks to ranousse.
Update installation instructions for the plugin
Merge branch 'hide-vifm-help-in-vim'

Made it possible to hide Vifm's configuration from Vim when it's not run
by Vifm's :help command.

Thanks to ranousse and juef