Have OSX support unified launch script

[Tyriar]

The script added in #2650 needs its OSX support finished:

• Determine where launcher.js should go on OSX
• Ensure code.sh points to correct paths
• Add action to install/uninstall global shortcut
• Provide upgrade mechanism

Once this is done and code.sh is put into /usr/bin on installation, there will no longer be a need to add function code () { VSCODE_CWD="$PWD" open -n -b "com.microsoft.VSCode" --args $*; } to dotfiles as suggested by the docs

[joaomoreno]

👍

[joaomoreno]

Commit be4a1ef adds an executable code which allows me to do this:

→ /Applications/Visual\ Studio\ Code\ Alpha.app/Contents/Resources/app/bin/code --help
Visual Studio Code v0.10.9-alpha

Usage: code [arguments] [paths...]

Options:
    -h, --help     Print usage.
    --locale       Use a specific locale.
    -n             Force a new instance of Code.
    -v, --version  Print version.

Pretty cool. Now we just need a way to place a symlink to this executable somewhere in the PATH.

[joaomoreno]

Fixed in d2a151f