Added foreign name referencing to sayhi

On ektony's request
Merge pull request #3 from TheJokr/master

New bot commands
(4:23:16 PM) jack_haydn: i'm going to merge this, although i'm sceptical about the route function. the restriction for full system names, even with case sensitivity, is pretty crippling from a UX perspective. besides, without JBs, people will use GTS or dotland with JB bookmarks and for hisec people will just use the builtin autopilot. we'll see how it goes, but i might end up pulling that part out again
(4:23:22 PM) jack_haydn: the other two things look pretty good though, nice work!
Adjusted sayhi help for new name reference feaure
Fix routes into not accessible space
Sync fork