24 store file type size in mongodb

[tcnichol]

Files uploaded now have the size in bytes stored as well as the content type. Visible on front end.

Not sure if the bytes are readable, many need to change to more readable format.

[max-zilla]

This should be expanded to include bytes and content type in file version as well, I think. If someone replaces file with something else then reverts to old version, we need to remember what those values are on the file versions stored in MongoDB as well, not just current file object. You can see how version_num is handled in a somewhat similar fashion

[tcnichol]

This should be expanded to include bytes and content type in file version as well, I think. If someone replaces file with something else then reverts to old version, we need to remember what those values are on the file versions stored in MongoDB as well, not just current file object. You can see how version_num is handled in a somewhat similar fashion

Max, I fixed this and added those fields to file version.

[longshuicy]

looks good to me.

[lmarini]

Made a followup issue #50