Added instructions to first clear the phpize before running it.
Added instructions to first clear the phpize before running it.

unisys12/phalcon-hhvm,unisys12/phalcon-hhvm,Zaszczyk/cphalcon,Zaszczyk/cphalcon,Zaszczyk/cphalcon,unisys12/phalcon-hhvm,Zaszczyk/cphalcon,unisys12/phalcon-hhvm,unisys12/phalcon-hhvm,unisys12/phalcon-hhvm