Fixed connection string parsing issue with UNC pathes

The issue can be fixed by setting the constructor parameter "parseViaFramework" of SQLiteConnection to true.

Only few documentation is available about that change that was apparently introduced with bugfix http://sqlite.1065341.n5.nabble.com/3-7-7-URI-filenames-and-UNC-paths-td6893.html

N.B.: I don't know wether or not the Mono version is affected.