Add lookup for different curl paths for Snoopy after init

The default curl path for snoopy is /usr/local/bin/curl - often however, it will reside in another path
Rather than changing the snoopy-code, the path is updated when snoopy is used
google books: URI already utf8 encoded

Use the new fetchURI rather than decoding the double encoded URI
Merge pull request #33 from Zleep-Dogg/google-books

Google books - UTF8
Merge pull request #34 from Zleep-Dogg/curl-path

Curl path
moved the curl path code to OpenDbSnoopy