liuv errors are properly reported now
liuv errors are properly reported now

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

linearregression/libmill,reqshark/libmill,linearregression/libmill,reqshark/libmill,dailypips/libmill,sustrik/libmill,ebfe/libmill,nirs/libmill,jimjag/mill,nirs/libmill,ebfe/libmill,ebfe/libmill,dailypips/libmill,8l/libmill,jimjag/mill,lsm/libmill,8l/libmill,acornejo/libmill,sustrik/libmill,lsm/libmill,lsm/libmill,sustrik/libmill,linearregression/libmill,acornejo/libmill,reqshark/libmill,dailypips/libmill,jimjag/mill