Implemented Favorite tables feature with Ajax.

Signed-off-by: Ashutosh Dhundhara <ashutoshdhundhara@yahoo.com>

Minor fixes in Settings->Features page and Navigation Header class.

Signed-off-by: Ashutosh Dhundhara <ashutoshdhundhara@yahoo.com>

Fixed translation issues in RecentFavoriteTable class.

Signed-off-by: Ashutosh Dhundhara <ashutoshdhundhara@yahoo.com>

Fixed error in RecentFavoriteTable class.

Signed-off-by: Ashutosh Dhundhara <ashutoshdhundhara@yahoo.com>

Another fix in structure.lib.php.

Signed-off-by: Ashutosh Dhundhara <ashutoshdhundhara@yahoo.com>