nightly update

git-svn-id: svn+ssh://svn.code.sf.net/p/firebird/code/firebird/trunk@59413 65644016-39b1-43b1-bf79-96bc8fe82c15
Let's see if this time I got the formatting well done.

git-svn-id: svn+ssh://svn.code.sf.net/p/firebird/code/firebird/trunk@59414 65644016-39b1-43b1-bf79-96bc8fe82c15
Experimental way of stopping gbak impersonation in sys tables. Gbak only needs to write to sys tables when it's restoring and only in the first attachment. Second and third attachment are for bringing the DB online and setting the R/O flag. Please test.

git-svn-id: svn+ssh://svn.code.sf.net/p/firebird/code/firebird/trunk@59415 65644016-39b1-43b1-bf79-96bc8fe82c15