Merge pull request #1 from jollyroger/master

Simple patch to fix Debian build.
Added sync client. BUgfixes
Empty array fix
Oops wrong empty array handling.
Support fo 3rd-party io_service
Support fo 3rd-party io_service
Merge branch 'master' of github.com:blackjack/booredis

Conflicts:
	src/booredisasync.cpp
	src/booredisasync.h