Optimization: avoid trie lookup for most events.
Optimization: avoid trie lookup for most events.

neiljerram/felix,matthewdupre/felix,neiljerram/felix,TrimBiggs/calico,alexhersh/calico,alexhersh/calico,TrimBiggs/calico,matthewdupre/felix,Metaswitch/calico,Metaswitch/calico,neiljerram/felix,neiljerram/felix