jmoiron plays the blues

jmoiron/humanize b95a05e filesize from jinja2 (newly fixed version since the old one is apparently hopelessly broken) now added to filesize as "naturalsize" to be consistent with naturaltime and naturalday
jmoiron/humanize 0cf1199 move ordinal to humanize.number, incorperate django's testing suite, add an optional format kwarg to intword