Page-related settings and other user interface improvements

by Nisarg Jhaveri for phpMyAdmin

The project is about implementing several feature requests. Majority of these feature requests are affecting user interface. The feature requests planned for the project are listed below. - rfe#1559 Page-related settings - rfe#1541 Disable foreign key checks in some operations - rfe#1551 Integrate SQL debugging into the console - rfe#1557 Option to remove functions and procedures from navigation tree - rfe#1603 Export: per-table structure/data