nightly update

git-svn-id: svn+ssh://svn.code.sf.net/p/firebird/code/firebird/trunk@60298 65644016-39b1-43b1-bf79-96bc8fe82c15
Fix build errors when WIRE_COMPRESS_SUPPORT not defined

git-svn-id: svn+ssh://svn.code.sf.net/p/firebird/code/firebird/trunk@60299 65644016-39b1-43b1-bf79-96bc8fe82c15
Make zlib allocate memory from our pool
Add Z flag in protocol version for compressed connections
Documentation


git-svn-id: svn+ssh://svn.code.sf.net/p/firebird/code/firebird/trunk@60300 65644016-39b1-43b1-bf79-96bc8fe82c15