Start gutting ChatLine, to be replaced with LogItem
Start LogItem, more gutting; see full log

ChatLine is being replaced with the more useful/detalied LogItem. We no longer
need several of the old global functions, so they have been ditched.
Add a util::contains which takes two strings
More gutting of archaic things; see full log

A bunch of variables have been removed and have been referenced in the vars
map instead. Other variables are not used at all so have just been removed.

reload and sleep functions have been added to core, but have not yet been
implemented properly.

A startup.pbrane file has been added that will eventually be run once at
startup. This initializes core variables that have not yet been defined
properly.
Fix README symlink