Invalid value for `match_type`: {".tag"=>"both_filename_and_content"}

[toomanyjoes]

I may be posting this issue prematurely but all of a sudden my client is getting this error when using the search function. Nothing has changed on our end. Perhaps Dropbox just now made a change to their way their search endpoint works?

EDIT: Apparently I have discovered the error returned when Dropbox returns an undocumented match_type. There's an open PR for fixing this.

#101