Fix notices when phalcon.orm.column_renaming is 0

Close #1801
Test case for #1801
Updated CHANGELOG
Implement reset() for metadata adapters other than memory

Close #1934
Updated CHANGELOG
Bug fix for PHP 5.3 and 5.4
Use phalcon_prepare_virtual_path_ex()
Optimize array functions
Use `lifetime` option of the frontend cache

Close #1886
Merge pull request #1952 from sjinks/issue-1934

Fix notices when phalcon.orm.column_renaming is 0 and implement reset() for metadata adapters
Merge pull request #1967 from sjinks/1.3.0

Bug fixes + build script fixes
Merge pull request #1972 from sjinks/array-opt

Optimize array functions
Merge pull request #1973 from sjinks/issue-1886

Use `lifetime` option of the frontend cache
cgi/php.ini php5-fpm, pep8 standart, phalcon command read and execute permissions
Merge pull request #1978 from sescobb27/1.3.0

cgi/php.ini php5-fpm, pep8 standart, phalcon command read and execute pe...