Michal Čihař - Weekly phpMyAdmin contributions 2016-W36

Weekly phpMyAdmin contributions 2016-W36

Last week was a bit calmer on my phpMyAdmin contributions as I've spent more time on other free software projects (namely Gammu).

Anyway there was still some amount of reviewing pull requests and bug screening and I've added PHP 7.1 to the testsuite on Travis while fixing some bugs this has revealed (thanks Deven for helping in this as well). Most notable these were bugs in our testsuite feeding invalid mock data in some situations. Without type warnings in upcoming PHP 7.1 these would be further unnoticed.

Handled issues: