Fixed boost define, and added version check for libboost_context. However, the version check seems not to work properly through testing. I've decided to keep it as giving a indication of what boost version is needed.
Fixed boost define, and added version check for libboost_context. However, the version check seems not to work properly through testing. I've decided to keep it as giving a indication of what boost version is needed.

edvardsp/libproxc