Fix tracking actions with empty page titles using MySQL 5.6+.
Run Ci builds on Mysql 5.6 to test and prevent (some critical) bugs caused by the now-enabled-by-default STRICT_TRANS_TABLES setting.

To prevent such issues let's run all tests against it. Refs https://github.com/piwik/piwik/pull/279

Reused Mysql 5.6 gist provided in https://github.com/travis-ci/travis-ci/issues/1986
Use latest Mysql 5.6.17 version (the older one was 404)
whitelist .deb files from this unit test
Confirm current sql_mode value
Really enable the STRICT_TRANS_TABLES, let's see if any of our tests fail
Refs https://github.com/piwik/piwik/pull/279
Fix notice: PDOException: SQLSTATE[42000]: Syntax error or access violation: 1101 BLOB/TEXT column 'additional_emails' can't have a default value
We do not actually Mysql 5.6 to test with STRICT_TRANS_TABLES enabled. Refs #5178
Fail when there was an exception in tracker
email_me is integer, fixes: General error: 1366 Incorrect integer value: '' for column 'email_me' at row 1
https://travis-ci.org/piwik/piwik/jobs/25436325
fix alert schema to be STRICT compliant
Merge pull request #279 from quba/fix-empty-action-name

Fix tracking actions with empty page titles using MySQL 5.6+.
Refs #5178 Disable STRICT mode for now since there still are many failing tests.
Merge remote-tracking branch 'origin/master'
Fix typo in test (period and ts_archived were reversed)
Remove exit(1); as i'm not sure if it is useful yet.
sm
added possibility to get/create a tracker by using "Tracker = AnalyticsTracker.getTracker" instead of "Piwik.getTracker". Variable will be set only if no such variable is defined yet
Fixes #5181 Renamed method
Merge branch 'master' of github.com:piwik/piwik