Updated port numbers to reflect Dogecoin port numbers.
Replaced simple references to Bitcoin, with Dogecoin.
Correct naming of application and packages from Bitcoin to Dogecoin.
Replace Bitcoin reference and old version with Dogecoin in Doxyfil.
Completed replacement of Bitcoin with Dogecoin in documentation.
Reverted database version from 5.1 to 4.8 to match official Dogecoin client.
Replaced much of the branding with Inutoshi.
Merge pull request #1 from rnicoll/master

Update documentation to reflect Dogecoin rather than Bitcoin