Fix memory leaks in LADSPA plugins
Fix memory leaks in ZynAddSubFX
Fix mismatched free() / delete / delete [] in RmsHelper.h
Check if object already exists instead of deleting and recreating it
Fix memory leaks in Audio setup tab in the settings dialog
Revert Zynaddsubfx changes
Merge pull request #1469 from DanWin/mem

Fix various memory leaks