Compilation errors with 3.0 fixed
Compilation errors with 3.0 fixed

Signed-off-by: Martin Sustrik <4dd6061be1198639e8b05ce4fd5ead7a0dcaa0f4@250bpm.com>

eburkitt/cppzmq,michele-brambilla/ConfigurationService,michele-brambilla/ConfigurationService,bsn069/cppzmq,michele-brambilla/ConfigurationService,zeromq/cppzmq,virtdb/cppzmq,K0n63n/cppzmq,zeromq/cppzmq,cmcmurrough/cppzmq,caidongyun/cppzmq,michele-brambilla/ConfigurationService,jens-auer/cppzmq,michele-brambilla/ConfigurationService,chenwenbin928/cppzmq