Fix 17072018

This update fixes a bug in update 15072018 where loading an old preset and inserting a module in a blank cell in the patcher grid would cause a crash. Download link -

Additionally, we applied a fix in the Sampler module, such that the next slot to load a sample in is unique for each Sampler, and such that it is automatically reset to zero when inserting a Sampler module or when switching between Sampler modules in the grid.

Thanks to @analoc for reporting and @BrettSaberhagen @aengine and others to confirm the bug.