Updated php packages fix security vulnerabilities

Floating-point exception in php-exif when parsing a tag format CVE-2016-10158. Crash in php-phar while loading hostile phar archive CVE-2016-10159. Memory corruption in php-phar when loading hostile phar CVE-2016-10160. Heap out of bounds read on unserialize in finishnesteddata CVE-2016-10161...