[1.3>master] [1.2>1.3] [MERGE #1582 @dilijev] Improve stability of compose_build.ps1.
[1.3>master] [1.2>1.3] [MERGE #1582 @dilijev] Improve stability of compose_build.ps1.

Merge pull request #1582 from dilijev:compose

mrkmarron/ChakraCore,mrkmarron/ChakraCore,Microsoft/ChakraCore,mrkmarron/ChakraCore,Microsoft/ChakraCore,Microsoft/ChakraCore,mrkmarron/ChakraCore,Microsoft/ChakraCore,Microsoft/ChakraCore,mrkmarron/ChakraCore,mrkmarron/ChakraCore,Microsoft/ChakraCore,mrkmarron/ChakraCore