Dynmap integration addition, show/who subcommand ordering, truncation to prevent connection loss. Resolves  #109, #150, #154

Backport of dynmap functionality removed to a paid plugin in the lovely glory-to-Arstotzka-free-and-therefore-immune-from-criticism massivecraft Factions. It needs tidying (in both code, and how it presents in Dynmap) it could be more efficient.

It's tested to work though, and that's what matters, right? :D 

Also, decided to implement a more trivial feature ticket. Now, when using /f show, the users will be grouped by role. 

Removal of 'feature', whereby connection loss can occur on using /f show. Bizarrely, while faction allies and enemies were truncated, this was not the case for faction members. This has been corrected.