* Update angular to 1.6 and ngDialog to 1.3.

* Remove broken Function.bind polyfill from kartograph that clashes w/ angular 1.6.

* $http.method().success/error functions do not exist in angular 1.6, just use standard promise interface.

* Maintain empty hash prefix for existing Piwik links.

See https://docs.angularjs.org/guide/migration#commit-aa077e8 for more info.

* Make sure radio setting values match availableValue values exactly.

Angular 1.6 uses strict equals when matching ng-value values w/ ng-model values, and the available values for boolean radio settings is always '0' or '1'. So we have to make sure the field value is '0'/'1'.

* Feedback form UI test code to remove piwik version string selected wrong element.

* Update expected screenshots (minor changes + unexplained default SMS provider change).

* Escape site name correctly

escape site name

* prevent raw notification messages to be parsed from angular

When eg a report or API is rendered and has a filter_limit URL parameter, the filter_limit is applied here and then eg returns only 10 segments instead of say 100.

* render template only if needed

* reuse same Twig instance

* cache CacheBuster to prevent recalculation when needed multiple times

* Add a link to Campaign tracking docs + URL Builder + Marketing Campaigns Reporting plugin

* Update UI tests

* Allow different reports pre-archiving frequency for each period

* Add new config settings for archive frequency

* added default config for range dates

* print changed archive periods

* minor change to log output

* Clarify wording, processed != requested.

* Fix integration test

* Different SMTP ports never used

* Remove ini_set

* move setting visitor details into own classes instead of using an event

* move manipulating actions to VisitorDetails classes

* move some more parts to plugins

* update test files as order of columns changed

* implement new VisitorDetails method to provide actions

* move rendering actions to visitordetail classes

* render visitor properties in new classes

* makes it possible to attach icons to visitor log

* moves rendering of action tooltip into new visitordetails method

* adds event for extending custom action dimension fields

* small improvements

* fetch log_link_visit_action.idpageview for actions

* improve variable name

* started to improve/change visitor profile

* show devices summary in visitor profile

* also remove empty xml tags for api tests

* hide actions in visitor profile by default

* move all icons to the middle of visitor log

* small change

* move rendering referrer information to referrers plugin

* move provider logic to provider plugin

* show content interactions in visitor log

* improve look of content interactions/impressions in visitor log / profile

* hide idpageview from tests

* update changelog

* move rendering events to Events plugin

* do not hide duplicate page views in visitor log, but show them with a refresh icon instead

* show top visited pages in visitor profile

* always show visitor profile link in visitor log

Still hidden in a widget by default, as it might overlay some other content

* Show info about not shown actions

truncated due to config setting

* use bulk queries to fetch actions instead of fetching them for each visit

* small adjustments

* improve some loops to improve memory usage

* move gathering visitor profile informations to VisitorDetails classes

* update screenshots

* update test files

* move rendering of visitor profile summary to visitor details classes

* improve templates

* Makes VisitorDetailsAbstract class api and improves comments

* show visit details in visitor profile

* improve css

* reverse enumeration of visits in visitor profile

* improve css

* Show visit id in IP tooltip

* Small CSS improvements

* further adjustments

* sort devices by count

* adds UI tests for visitor log and profile

* Show bandwidth in visitor profile test

* show actions by default and add button to toggle all together

* CSS cleanup

* remove border around refresh icon

* add tooltip for refresh icon in profile

* move first/last visit before top visited pages

* Improve text shown for unique pageviews

* link urls in top visited pages

* improve sorting of device list

* improve tests

* Improve device overview in visitor profile

* only render top pages if at least one page was visited more than once

* make visitor id non bold

* hide visitor type icon in profile, and show latest visits icons in overview

* fix search engine icon in visitor details

* small improvements

* only render view if required

* show visit icons only on hover in profile

* remove from again

* test improves

* show text besides icon in profile header

* improve tests

* Removes unused CSS and JS

* Reformats CSS

* Removes invisible paper clip

* Removes unused profile images from Live plugin

* raise test timeouts

* Improve UI tests splitting for travis

* show device type in profile header if no resolution is available

* prevent text overlapping

* no retries

* fix test

* change summary order

* fix position of export icon

* fixes tooltip text

* improve pages overview

* visitor details order

* action tooltip order

* show only ecommerce icon if no goals where converted

* show custom variables summary in profile

* show user id in same size as headline

* link referer urls for first/last visit in profile

* make profile xml compatible

* try to improve ui test

* increase bottom marign

* increase version number

* small adjustments

* CSS Rewrite for visitor profile

* center action icons in visitor log and profile

* improve widgetized visitor profile

* small layout fix

* always populate raw referrer url for visitor details

* update expected test files

* Refactor profile summaries into additional classes

* update screenshots

* submodule update

* update piwik-icons submodule (#11904)

* update piwik-icons submodule

* fix some system tests

* update screenshots

* make device list xml compatible

* improve translation

* improve icon position

* improves spacings

* update test files

* small css improvement

* update screenshots

* Do not hide select box for metric selection

* update screenshots

* update device detector

* sort brands for segment

* submodule update

in UIAssetFetcher and StylesheetUIAssetMerger.
Resolves #11654, makes PIWIK_USER_PATH work again.
Presumably. the paths were just mixed up.

* write timezone (in our case: always "UTC") in log messages

* use 'T' instead of 'e' in LineMessageFormatter

* Debug log archiver queries

* comment out

When tracker is in maintenande mode return HTTP status code 503 (instead of the current 200 and 400 http status cods) (#11773)

* When tracker is in maintenande mode, return HTTP status code 503 instead of the current status of 200 or 400

This will make our return code consistent with the UI which also returns 503 while in maintenance mode

 Learn more about starting a maintenance window: https://piwik.org/faq/how-to-update/faq_154/

* Update TrackerResponseTest.php

* Update TrackerResponseTest.php