refs #6257 visitorUUID equal by default for each new Piwik.Tracker
language update  refs #3430
Fixed .gitignore
refs #3490 wondering whether all tests still pass when converting userid to dimension
refs #3490 fixed some tests as the position of userId changed
fix plugin test
I only changed the processed file before but not the expected
refs #3490 removed segment definition as it apparently depends on idSites which I do not quite understand why
Refs  #3490 Display User ID in Real time map
Refs #6162 check this does not fail the tests
refs #3490 Throw meaningful error when userId segment is used with an unsupported segment match operator + test
for plugins CI only run the UI job on PHP 5.5 and not php 5.6 (running UI test job twice has no benefit)
fix regression when HTTPS URL is different from HTTP Tracker URL, both should be used in the generated tracking code refs #344
Merge pull request #6273 from piwik/3490_userIdAsDimension

User ID should be defined as dimension
User ID is NULLable refs #3490
refs #5972 display today button in calendar. Unfortunately it does not select the date directly and it is not possible to add another button for yesterday which are both quite annoying. When moving to Angular we better choose another calendar
Merge branch 'master' of github.com:piwik/piwik
User ID is NULLable now results in expected tests results: nb_users = 0 when no user id was set. refs #3490 #6162
Merge remote-tracking branch 'origin/master'
refs #5972 show end date of date range when clicking on annotations and select the clicked date when clicking on a specific day. It still does not show today as default when clicking on annotation.