Show database name in 'Check referential integrity' operation as it already supports cross database relations
Make 'full name' optional in getUniqueColumns() method as sometimes full name is not required
Improved relation view interface
Improve comments on the behavior of new relation view interface
Pass parameter values without backquotes to avoid confusions
Update FAQs to reflect the ability to set cross database relations
Update FAQs to reflect new process of selecting foreign columns
Merge branch 'master' into relView

Conflicts:
	tbl_relation.php
Merge pull request #438 from kasunchathuranga/relView

Relational view interface improvements