v1.4.3 Commands & help overhaul + new features

Added nicknames support, reworked on all of the help files, reworked on protection rules
Added Web_GUI plugin, Claims plugin and many other improvements - please check the commits

### NOTE FOR UPGRADING FROM 1.3.2 ###
If you were using bookmarks and POI's, the location of the JSON files has changed. Move all your #uuid#.json files from plugins/bookmarks folder to config/bookmarks and plugins/planet_warps/warps.json to config/bookmarks/pois.json
Planet warps plugin has been merged into Bookmarks plugin, so if you're overwriting your old installation please, remove the planet_warps plugin.