not sure if this works but basically we want to trigger the ui tests on the correct branch of the ui test repo

there is not a need to alter the table in chunks as this did not cause the mysql has gone away error

this should fix the "MySQL server has gone away" error on Travis. It only occurred sometimes as the timeout on travis is only 180 (28800 is mysql standard)

this is just a lucky guess... maybe we avoid those "Error while sending QUERY packet." errors on travis by splitting them into smaller alter tables. This is more or less the only difference to master branch where this problem does not occur

refs #5326 as mentioned in the ticket once we have simplified the reports we can simplify the widgets api even more which is done in this commit, it might be not perfect yet but again much better than before

fix most tests, we still need to sort report metadata although the reports are already sorted. but as one report can export multiple reportMetadata having different orderIds there is no way around this right now

renderWidget => renderReportWidget since we might want to use renderReport to actually render a widget