With great power comes great responsibility. This function is
somewhat low level, and is harmful to shell's user, as it
completely screws up with job control (subprocesses).

This PR officially marks `refresh` as deprecated, moving the
deprecated functionality to omf plugin `compat` quarantine
directory.

Add hash plugin to database

Add ssh-config.d plugin into database

registry: point direnv plugin to organization's version

Add expand plugin to database

Add argu plugin to database

Create mars

Add termux plugin to database

Update plugin URLs and remove broken plugin entries

Allow selective updates

Add phpbrew plugin to database

registry: remove deprecated agnoster-mercurial theme

Improve OMF CLI completions

docs: update Themes.md

Add Visual Studio Code plugin

Command line for Visual Studio Code

update to oh-my-fish repo

Added a new theme `es` with properly formatted remote name 

Remove themes doc travis test

git_ahead: Fix indicator override

Add chain theme to db

Fixes #186 by removing the PATH save/restore code from init.fish.

There isn't a single occurence where Oh My Fish code changes the
value of PATH variable.

Plugin code which changes the PATH variable should be aware of
the side-effects and manage PATHs correctly, avoiding duplication.