Major rewrite
Fix bug #947
Do not efree() what we alloca()'d
Fixed typos
Make use of interned strings
Do not use emalloc() in phalcon_call_user_function()
Add missing call to zend_inline_hash_func()
Merge pull request #953 from dreamsxin/bug_947

Fix bug #947 Tag::radioField Automatically check
Merge pull request #954 from sjinks/fcall

kernel/fcall.c optimizations