Problem: Can't build Release type with "git clone"d source
Problem: Can't build Release type with "git clone"d source

Solution: Respect the specified CMAKE_BUILD_TYPE value. If users don't
specify CMAKE_BUILD_TYPE, auto CMAKE_BUILD_TYPE set is used. Normally,
users don't specify CMAKE_BUILD_TYPE, so the behavior isn't changed.

zeromq/zproject,paddor/zproject,paddor/zproject,taotetek/zproject,paddor/zproject,zeromq/zproject,zeromq/zproject,taotetek/zproject,taotetek/zproject