Fixed operator>>(object const& o, various types& v) return type and value problem.
https://github.com/msgpack/msgpack-c/issues/105
Merge pull request #107 from redboltz/fix_105_for_poc0.6

Fixed operator>>(object const& o, various types& v) return type and valu...
Fixed autotools AC_INIT with external information implemantation.
See:
http://stackoverflow.com/questions/22871340/using-a-variable-in-ac-init