nightly update

git-svn-id: svn+ssh://svn.code.sf.net/p/firebird/code/firebird/trunk@60293 65644016-39b1-43b1-bf79-96bc8fe82c15
Move ConfigRoot from common to the yvalve. Add its methods to the public interface ConfigManager.
Now all plug-ins have the same root\install folders.
It should fix CORE-4581 and related issues.
MSVC10 and MSVC12 builds are updated, Posix and Darwin builds will follow.

git-svn-id: svn+ssh://svn.code.sf.net/p/firebird/code/firebird/trunk@60294 65644016-39b1-43b1-bf79-96bc8fe82c15
Fixed posix build

git-svn-id: svn+ssh://svn.code.sf.net/p/firebird/code/firebird/trunk@60295 65644016-39b1-43b1-bf79-96bc8fe82c15
Remove unneeded any more assert, causing problems for a build w/o compression

git-svn-id: svn+ssh://svn.code.sf.net/p/firebird/code/firebird/trunk@60296 65644016-39b1-43b1-bf79-96bc8fe82c15
Load zlib dynamically to make it possible for the client to run without it
Added configure switch to turn off build with compression
Cleanup zlib streams to avoid memory leak
Use SHRLIB_EXT instead explicit "so"


git-svn-id: svn+ssh://svn.code.sf.net/p/firebird/code/firebird/trunk@60297 65644016-39b1-43b1-bf79-96bc8fe82c15