Ability to sync from remote endpoint(s) and added more feedback to status bar

[gatorv]

This fork enables the plugin to sync from a remote end-point and adds some enhancements to select the RSync items from the Side-Bar, also adds a animated status bar when syncing so user has more feedback.

[davidolrik]

Thanks for the pull request, have you read my reservations about syncing in both directions?

[davidolrik]

I think I might use this pull request as a starting point, and add bi-directional sync with some safe guards that will hopefully prevent people from overriding changes on the receiving end by accident.

[gatorv]

Yes I read them (after) and you have valid concerns, but I think having the option is better, maybe have a "preview" mode that will show in a new view the output using --dry-run and force people to remove it to do the actual sync.

I have been using the remote to local sync option for a couple of weeks and so far it works flawless, also the save on sync to remote works good so I think it's a good idea to add to plugin.