Michal Čihař - Weekly phpMyAdmin contributions 2017-W24

Weekly phpMyAdmin contributions 2017-W24

Besides usual bug screening and pull requests merging, I've spent quite some amount in digging reports in our error reporting server and fixed the most visible ones.

The error reporting server collects errors happening in phpMyAdmin installations worldwide (this is opt-in reporting) and gives us insights where our users suffer most. Some of the errors are really weird and probably indicate PHP bug, but as we don't collect more information than is necessary, we really can not say for sure and we can not find person to reproduce the bug. Anyway if something has happened hundredth times on several installations, it's probably worth fixing in our code base.

Handled issues: