Fixed assertion in services when talking to pre-FB3 server

git-svn-id: svn+ssh://svn.code.sf.net/p/firebird/code/firebird/trunk@57958 65644016-39b1-43b1-bf79-96bc8fe82c15
Replace my e-mail.

git-svn-id: svn+ssh://svn.code.sf.net/p/firebird/code/firebird/trunk@57959 65644016-39b1-43b1-bf79-96bc8fe82c15
Document CORE-726 - Boolean data type.

git-svn-id: svn+ssh://svn.code.sf.net/p/firebird/code/firebird/trunk@57960 65644016-39b1-43b1-bf79-96bc8fe82c15