Squashed commit of the following:
Squashed commit of the following:

commit 3c76490beecd6296ca3520f1e0029a84dd2c0bb1
Author: Julian Lam <julian@designcreateplay.com>
Date:   Thu Feb 25 10:20:12 2016 -0500

    missed a variable

commit ce2b9108fa1ef4d86db6ddb8e0b585afa8667fed
Author: Julian Lam <julian@designcreateplay.com>
Date:   Thu Feb 25 10:10:22 2016 -0500

    updated logic to properly handle when a saved id:uid reference is outdated
    and the user no longer exists (typically when a user is deleted via ACP)

julianlam/nodebb-plugin-session-sharing