Refactoring error messages. I changed 'em from public static final constants to methods. The benefit is that now the arguments are typechecked. More importantly, now we can gather coverage on methods. Which opens the door to figuring out which methods we have test coverage for (not very many!)

git-svn-id: d779f126-a31b-0410-b53b-1d3aecad763e
33 files changed