phalcon_throw_exception_string() aliased to zend_throw_exception_ex()
Added computeHmac() method
Detect ext/hash/php_hash.h availability at compile time
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Introduce new macros for type conversion/verification
Convert types instead of throwing exceptions
Fix #1340
PHALCON_ALLOC_GHOST_ZVAL()
Dropped PHALCON_SEPARATE in favor of SEPARATE_ZVAL