nightly update

git-svn-id: svn+ssh://svn.code.sf.net/p/firebird/code/firebird/trunk@60184 65644016-39b1-43b1-bf79-96bc8fe82c15
Fix visibility problem for:
GSEC> add sysdba -pw masterkey
unable to open database
Error loading plugin Srp
Standard plugin entrypoint does not exist in module
/Users/pbeach/firebird30/gen/Release/firebird/plugins/libSrp.dylib
GSEC>

git-svn-id: svn+ssh://svn.code.sf.net/p/firebird/code/firebird/trunk@60185 65644016-39b1-43b1-bf79-96bc8fe82c15
Get rid of upgradeInterface API method and some adjustments. To be continued.

git-svn-id: svn+ssh://svn.code.sf.net/p/firebird/code/firebird/trunk@60186 65644016-39b1-43b1-bf79-96bc8fe82c15