Updating version to 1.3.4
Remove Useless content
Fix #2840
Updated CHANGELOG [ci skip]
Merge pull request #2841 from sjinks/issue-2840

Fix imporper access to \Phalcon\Debug::$_charset
Merge pull request #2839 from dreamsxin/CHANGELOG

Remove Useless content
Fix bug about \Phalcon\Paginator\Adapter\QueryBuilder
Merge pull request #2842 from dreamsxin/paginator

Fix bug about \Phalcon\Paginator\Adapter\QueryBuilder
Regenerating build [ci skip]
fix @return type
Merge pull request #2858 from xboston/patch-5

fix @return type
Merge remote-tracking branch 'upstream/1.3.4'