Added pecl_http support
centralize location of extension dir
forgot one extension install dir replacement
Merge branch '5_4_mountainlion' into 5_5_mountainlion

* 5_4_mountainlion:
  forgot one extension install dir replacement
  centralize location of extension dir
  Added pecl_http support

Conflicts:
	lib/Package/bytekit.pm
	lib/Package/peclbase.pm
	lib/Package/php5.pm
	lib/Package/xdebug.pm