Added dependency on mime-types gem
Added dependency on mime-types gem

bsodmike/dragonfly,customink/dragonfly,anoworl/dragonfly,bsodmike/dragonfly,corewebdesign/dragonfly,markevans/dragonfly,markevans/dragonfly,xfxf/dragonfly,thomas-profitt/dragonfly,xfxf/dragonfly,customink/dragonfly,koa/dragonfly,bobbus/dragonfly,quarkstudio/dragonfly,jeremyf/dragonfly,jeremyf/dragonfly,thomas-profitt/dragonfly,quarkstudio/dragonfly