Fix potential crashes during playback (r15422)
Fix crash when rescaling during playback (r15423)
Fix crash when splitting during playback (r15424)
Fix horizontal wheel scrolling on segment canvas (Bug #1561, r15430)
Fix horizontal wheel scrolling on Matrix and Notation editors (Bug #1561, r15432)
Enable High DPI Scaling (Bug #1565, r15444)
Roland-CM-64.rgd: Fix SN-U110-02 perc mappings (r15448)
Avoid using null pointers (Bug #1566, r15453)
Fix broken right edge auto scroll (Bug #1567, r15462, r15464)
Fix crash when adding a Track with no Devices (r15463)
Fix numerous memory leaks (r15466, r15470-5, r15477, r15479, r15481, etc…)
Fix build with Qt 5.7, which doesn't have QSharedPointer(nullptr) (r15476)
SegmentParameterBox: Fix invalid memory access (Bug #1568, r15492)
Fix Qt 5.7 QSharedPointer/nullptr build issue (r15493)