Merge master into "3.0"

Conflicts:
	.travis.yml
	CHANGELOG.md
	core/Plugin/ControllerAdmin.php
	core/Version.php
	core/testMinimumPhpVersion.php
	plugins/API/API.php
	plugins/Actions/Reports/GetPageUrls.php
	plugins/AnonymousPiwikUsageMeasurement
	plugins/CoreHome/CoreHome.php
	plugins/CoreHome/templates/_menu.twig
	plugins/CoreVisualizations/javascripts/jqplotEvolutionGraph.js
	plugins/CustomVariables/tests/System/expected/test_CustomVariablesSystemTest__CustomVariables.getCustomVariables_day.xml
	plugins/Goals/Controller.php
	tests/PHPUnit/Fixtures/ManyVisitsWithGeoIP.php
	tests/PHPUnit/Integration/Plugin/ManagerTest.php
	tests/PHPUnit/System/expected/test_FlattenReports__CustomVariables.getCustomVariables_day.xml
	tests/PHPUnit/System/expected/test_TwoVisitors_twoWebsites_differentDays_scheduled_report_in_html_tables_only__ScheduledReports.generateReport_month.original.html
	tests/PHPUnit/System/expected/test_apiGetReportMetadata__API.getSegmentsMetadata.xml
	tests/PHPUnit/System/expected/test_ecommerceOrderWithItems_scheduled_report_in_html_tables_only__ScheduledReports.generateReport_week.original.html
	tests/PHPUnit/System/expected/test_periodIsRange_dateIsLastN_MetadataAndNormalAPI__CustomVariables.getCustomVariables_range.xml
	tests/PHPUnit/System/expected/test_periodIsRange_dateIsLastN_MetadataAndNormalAPI_pagesegment__CustomVariables.getCustomVariables_range.xml
	tests/PHPUnit/System/expected/test_reportLimiting__CustomVariables.getCustomVariables_day.xml
	tests/PHPUnit/System/expected/test_reportLimiting_rankingQuery__CustomVariables.getCustomVariables_day.xml
	tests/PHPUnit/System/expected/test_twoVisitsWithCustomVariables_segmentMatchALL_noGoalData__CustomVariables.getCustomVariables_day.xml
	tests/PHPUnit/System/expected/test_twoVisitsWithCustomVariables_segmentMatchALL_noGoalData__CustomVariables.getCustomVariables_week.xml
	tests/PHPUnit/System/expected/test_twoVisitsWithCustomVariables_segmentMatchVisitorType__CustomVariables.getCustomVariables_day.xml
	tests/PHPUnit/System/expected/test_twoVisitsWithCustomVariables_segmentMatchVisitorType__CustomVariables.getCustomVariables_week.xml
	tests/UI/expected-ui-screenshots
	tests/UI/specs/Overlay_spec.js
	tests/UI/specs/UIIntegration_spec.js