Update american-journal-of-archaeology.csl
Merge pull request #486 from asppsa/patch-1

Update american-journal-of-archaeology.csl
Update harvard7de.csl
update to csl-ruby stable release

add citation-format style-class tests

to run the tests please run 'bundle install' first
update csl gem
Correct a few "citation-format" values (kudos to Sylvester Keil)
Merge remote-tracking branch 'upstream/master'
Merge branch 'master' of git://github.com/citation-style-language/styles