Merge remote-tracking branch 'origin/QA_4_0'
Merge pull request #595 from ismywb/master

Update config.default.php
Adjust doc to be in sync with config (issue #595)
Default to utf8mb4 for new MySQL versions
Automatic switch to utf8mb4 collation
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Currently translated at 98.9% (2581 of 2609)
Merge remote-tracking branch 'origin/QA_4_0'
Fix set_error_handler call
Add myqsl username and password config
Improve current database test
Add mysql query and connect functions
Add test for table creation
Merge remote-tracking branch 'scnakandala/refac_tbl_columns_definitions'
Fix end of lines
Remove extra spaces
runkit testing for dbi/DBIMysql
Add teardown and fix mysql error
Merge pull request #600 from adamgsoc2013/ut_plu_dbi

runkit testing for dbi/DBIMysql
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Currently translated at 100.0% (2718 of 2719)
Merge remote-tracking branch 'origin/master'