Updated Debian-specific patch (failed to apply)

* Kept original patch author's in-line comment for reference
* Updated debian/changelog accordingly, just to make sure
* Added patch validation step to release protocol in README-dev
Merge pull request #145 from brevilo/fix-debian-patch

Updated Debian-specific patch (failed to apply)
Fix v1 protocol authentication example

Relates to #128
Fix CompositeType column spec in CREATE TABLE stmts
Merge branch 'master' into 2.1-support