Make agent.transactionNameNormalizer load config data.

Howdy, thanks for a great service and module.

I tried to add some config rules to ignore a path in my app, but ended up doubting my regexp skills, since they were not taken into account. So I started debugging, and found that the agent.transactionNameNormalizer does not load from config, thus not loading my ignore rules. This patch fixes that.

I must note that this was just a quick debugging from my side, but surely you guys can quickly see if this was indeed something you overlooked, or if there is something else wrong.

Should probably have a quick test too?

Anyways. Thanks again. Hope this helps.

(btw, sorry for the duplicate. Accidentally committed as my vagrant machine)