Automatically detect external URLs in Phalcon\Http\Response::redirect()

See https://github.com/phalcon/cphalcon/issues/1182
Test case
Updated CHANGELOG
Simplier implementation of phalcon_require
Native Reflection API + Annotation Parser Optimization
Updated CHANGELOG
Fix Phalcon\Forms\Element\Select::addOption()

Close #1955
Updated CHANGELOG
Test case for #1955
Merge pull request #1942 from sjinks/issue-1182

Automatically detect external URLs in Phalcon\Http\Response::redirect()
Merge pull request #1951 from sjinks/phalcon_require

Simplier implementation of phalcon_require
Merge pull request #1956 from sjinks/1.3.0

Extra Z_DELREF_P in phalcon_tag_generic_field_checked()
Merge pull request #1957 from sjinks/reflection

Native Reflection API + Annotation Parser Optimization
Merge pull request #1958 from sjinks/issue-1955

Fix Phalcon\Forms\Element\Select::addOption()