CSV file type in windows

[renjithsasidharan]

Browsers on windows send MIME type as application/vnd.ms-excel. Library is just checking againt text/csv. This can break things in windows. The workaround now is to make changes in windows registry to send text\csv as MIME type.

http://stackoverflow.com/questions/1201945/how-is-mime-type-of-an-uploaded-file-determined-by-browser