add sub class to test different env setting
add test case for PMA_TableSearch
fix the DBI setting
mock fetchrow for DBI
add PMA_Table::$cache
add test case for PMA_relation
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Merge remote-tracking branch 'origin/QA_4_0' into QA_4_0
refactor server_export
refactor the code style of server_export
fix the undefined error
Merge branch 'master' of https://github.com/phpmyadmin/phpmyadmin into server_refactor2
fix undefined variable: multi_values
Merge pull request #530 from scnakandala/gsoc_2013_2

Refactoring SQL executor
removed include sql.php from tbl_select.php
rename server_export.lib.php to display_export.lib.php due to it works for server and database, table level export
Merge pull request #526 from adamgsoc2013/ut_plug_schema

fix the DBI mocking for Schema classes
Merge pull request #525 from adamgsoc2013/UT_plu_table

1 add sub class to test different runkit setting 2 add test case for PMA_TableSearch
Merge pull request #529 from scnakandala/gsoc_2013

Refactoring SQL executor