Changes to existing plugins and new plugins added

I've made a 2 new plugins:
- /players which only adds an alias to /who command
- /starteritems creates new command to enable new_player_greeting with command (i dislike autogive)
- config.json.default includes neccesery additions for /starteritems (for now)

I've also updated these plugins to work propely with StarryPy 1.2.3 master
- PlanetWarps - /poi /set_poi /del_poi - its a rework of Hexicube's code, adapted to work with Warpy and named as "Planets of Interest" based on the way they work now
- LoginWho - fixed issues with iports and remodelled it to simply call /who instead of re-implementing it
- Uptime - formated the output into HH:MM
- Emotes - changed color of emotes to orange (*** NOTE *** You will need an updated version of the server.py with broadcast_planet function - can be seen at the bottom on this diff https://github.com/teihoo/StarryPy_Teihoo/commit/ba2de75f55fc95c7b2c2b1590e92cb691fd162dd )

*** NOTE *** I've changed utcnow() to now() - so it properly shows on my end, since i want to show server time, I can change it back to utcnow() for the branch if you like