Simplified Makefile.am somewhat
Simplified Makefile.am somewhat

I removed some extraneous macro expansions which owed to my lack of
understanding of automake previously.

jwakely/ledger,jwakely/ledger,paulbdavis/ledger,jwakely/ledger,paulbdavis/ledger,jwakely/ledger,paulbdavis/ledger,paulbdavis/ledger,afh/ledger,ledger/ledger,jwakely/ledger,jwakely/ledger,ledger/ledger,ledger/ledger,afh/ledger,paulbdavis/ledger,afh/ledger,duncanmortimer/ledger,afh/ledger,jwakely/ledger,duncanmortimer/ledger,paulbdavis/ledger,duncanmortimer/ledger,paulbdavis/ledger,duncanmortimer/ledger,duncanmortimer/ledger,ledger/ledger,duncanmortimer/ledger,duncanmortimer/ledger,ledger/ledger,afh/ledger