refs #9032 #9038 reimplement menu behaviour when clicking on a already menu item and when category contains only one item

Apply number formatting changes from master to 3.X branch

Conflicts:
	CHANGELOG.md
	core/Plugin/Controller.php
	core/Version.php
	plugins/API/ProcessedReport.php
	plugins/CoreHome/CoreHome.php
	plugins/CoreHome/javascripts/corehome.js
	plugins/CoreHome/javascripts/menu.js
	plugins/CoreHome/javascripts/menu_init.js
	plugins/CoreHome/lang/en.json
	plugins/CoreHome/stylesheets/zen-mode.less
	plugins/CoreHome/templates/ReportsByDimension/_reportsByDimension.twig
	plugins/CoreHome/templates/_indexContent.twig
	plugins/CoreHome/templates/getDefaultIndexView.twig
	plugins/Dashboard/Menu.php
	plugins/Dashboard/javascripts/dashboard.js
	plugins/Dashboard/javascripts/dashboardObject.js
	plugins/Goals/templates/_titleAndEvolutionGraph.twig
	plugins/Goals/templates/getOverviewView.twig
	plugins/Morpheus/javascripts/piwikHelper.js
	plugins/Referrers/templates/index.twig
	plugins/UserCountry/templates/index.twig
	plugins/VisitFrequency/templates/_sparklines.twig
	plugins/ZenMode/ZenMode.php
	plugins/ZenMode/javascripts/zen-mode.js
	tests/PHPUnit/Fixtures/UITestFixture.php
	tests/PHPUnit/System/expected/test_apiGetReportMetadata__API.getReportMetadata_day.xml
	tests/UI/expected-ui-screenshots
	tests/UI/specs/Dashboard_spec.js
	tests/UI/specs/Menus_spec.js
	tests/UI/specs/UIIntegration_spec.js

Only add piwik-expand-on-click to the controls that need it

Make sure apply button works when no period is changed

Wrap plugin name if plugin name is very long

Make sure to sort 3rd party reports correctly

Better spacing for RSS feed

Added tests for anonymous usage tracking

Command to invalidate archive data (w/ period cascading)

Fix logo when a custom logo is uploaded

Left menu tweaks

Make sure to remove no longer needed plugins leftMenu and ZenMode

fix "Check for updates" button not working on demo