In narrow mode, print "All languages" heading if suggested languages are given

Also changed one instance of "Common languages" to "Suggested languages" in
the no-i18n fallback code.

i18n/en.json

@@ -13,6 +13,7 @@
 	"uls-region-AS": "Asia",
 	"uls-region-ME": "Middle East",
 	"uls-region-PA": "Pacific",
+	"uls-region-all": "All languages",
 	"uls-no-results-found": "No results found",
 	"uls-common-languages": "Suggested languages",
 	"uls-no-results-suggestion-title": "You may be interested in:",

i18n/qqq.json

@@ -14,6 +14,7 @@
 	"uls-region-AS": "Label for Asia",
 	"uls-region-ME": "Label for Middle East",
 	"uls-region-PA": "Label for Pacific",
+	"uls-region-all": "Label for all languages in narrow mode, where languages are not split by region.",
 	"uls-no-results-found": "Title text for 'No results found' section",
 	"uls-common-languages": "The ULS tries to guess the langugages that the user is most likely to pick. They are taken from geolocation (languages of the current country according to the IP address), previously selected languages, and the browser's accept-language. The list of these languages appears at the top of the ULS languages list, above the geographical regions. This is the title of that list.\n\nSee also {{msg-mw|Mobile-frontend-languages-structured-overlay-suggested-languages-header}}",
 	"uls-no-results-suggestion-title": "Title for language suggestion in 'no results found' screen",

src/jquery.uls.lcd.js

@@ -109,8 +109,9 @@
 		},
 
 		render: function () {
-			var $section,
+			var $section, $quicklist,
 				lcd = this,
+				narrowMode = this.options.columns === 1,
 				regions = [],
 				regionNames = {
 					// These are fallback text when i18n library not present
@@ -124,7 +125,16 @@
 					PA: 'Pacific'
 				};
 
-			regions.push( this.buildQuicklist() );
+			$quicklist = this.buildQuicklist();
+			regions.push( $quicklist );
+
+			if ( narrowMode && $quicklist.length ) {
+				regions.push( $( '<h3>' )
+					.attr( 'data-i18n', 'uls-region-all' )
+					.addClass( 'uls-lcd-region-title' )
+					.text( 'All languages' )
+				);
+			}
 
 			$.each( $.uls.data.regiongroups, function ( regionCode ) {
 				lcd.regionLanguages[ regionCode ] = [];
@@ -139,7 +149,7 @@
 					.attr( 'id', regionCode );
 
 				// Show a region heading, unless we are using a narrow ULS
-				if ( lcd.options.columns !== 1 ) {
+				if ( !narrowMode ) {
 					$section.append( $( '<h3>' )
 						.attr( 'data-i18n', 'uls-region-' + regionCode )
 						.addClass( 'uls-lcd-region-title' )
@@ -323,7 +333,7 @@
 			$quickListSectionTitle = $( '<h3>' )
 				.attr( 'data-i18n', 'uls-common-languages' )
 				.addClass( 'uls-lcd-region-title' )
-				.text( 'Common languages' ); // This is placeholder text if jquery.i18n not present
+				.text( 'Suggested languages' ); // This is placeholder text if jquery.i18n not present
 			$quickListSection.append( $quickListSectionTitle );
 
 			this.renderRegion(