Merge remote-tracking branch 'origin/master'

add method update Multiple Condition.

Merge pull request #105 from AdairHomes/master

Determine database driver from model

Merge pull request #95 from JoaoFSCruz/disable-backtick-when-incremen…

…ting

Disable backtick when incrementing

fix syntax error

Merge pull request #85 from YuzuruS/patch-1

support to the case where there is no 0th array

Merge pull request #85 from YuzuruS/patch-1

support to the case where there is no 0th array

Merge pull request #82 from jiaconcon/patch-1

Update Common.php

Merge pull request #80 from jadenjoy/hotfix-is-json

Hotfix for is_json function.

Merge pull request #78 from arnal1/add-disable-bactick-to-insert

Update Batch.php