Added search query minifying

Seeing 'page=1' and 'query=' in every other link was tiresome. I changed
the rules so that such keys are appended only if they hold nontrivial
values.

public_html/js/Presenters/PagerPresenter.js

@@ -82,11 +82,12 @@ App.Presenters.PagerPresenter = function(
 	function getUrl(options) {
 		return util.appendComplexRouteParam(
 			baseUri,
-			_.extend(
-				{},
-				pager.getSearchParams(),
-				{page: pager.getPage()},
-				options));
+			util.simplifySearchQuery(
+				_.extend(
+					{},
+					pager.getSearchParams(),
+					{page: pager.getPage()},
+					options)));
 	}
 
 	function syncUrl(options) {

public_html/js/Services/PostsAroundCalculator.js

@@ -41,7 +41,11 @@ App.Services.PostsAroundCalculator = function(_, promise, util, pager) {
 			if (position + direction >= 0 && position + direction < postIds.length) {
 				var url = util.appendComplexRouteParam(
 					'#/post/' + postIds[position + direction],
-					_.extend({page: page}, pager.getSearchParams()));
+					util.simplifySearchQuery(
+						_.extend(
+							{page: page},
+							pager.getSearchParams())));
+
 				resolve(url);
 			} else if (page + direction >= 1) {
 				pager.setPage(page + direction);
@@ -54,7 +58,11 @@ App.Services.PostsAroundCalculator = function(_, promise, util, pager) {
 
 							var url = util.appendComplexRouteParam(
 								'#/post/' + post.id,
-								_.extend({page: page + direction}, pager.getSearchParams()));
+								util.simplifySearchQuery(
+									_.extend(
+										{page: page + direction},
+										pager.getSearchParams())));
+
 							resolve(url);
 						} else {
 							resolve(null);

public_html/js/Util/Misc.js

@@ -237,6 +237,17 @@ App.Util.Misc = function(_, jQuery, marked, promise) {
 		return result.slice(0, -1);
 	}
 
+	function simplifySearchQuery(query) {
+		if (typeof(query) === 'undefined') {
+			return {};
+		}
+		if (query.page === 1) {
+			delete query.page;
+		}
+		query = _.pick(query, _.identity); //remove falsy values
+		return query;
+	}
+
 	return {
 		promiseTemplate: promiseTemplate,
 		formatRelativeTime: formatRelativeTime,
@@ -249,6 +260,7 @@ App.Util.Misc = function(_, jQuery, marked, promise) {
 		transparentPixel: transparentPixel,
 		loadImagesNicely: loadImagesNicely,
 		appendComplexRouteParam: appendComplexRouteParam,
+		simplifySearchQuery: simplifySearchQuery,
 	};
 
 };