Updates

Tested Virus Total API for the REAL size limit. Seems like they have a
bug there. Updated the size limit in the API implementation to reflect
this.
Added the ability to switch the API url in case VT updates the url.
Updates

Now using UrlReport for urls
Renamed Report to FileReport
Extended ScanResult with other hashes
Uppercased hash function names
Bumped version number
minor changes to unittest