Fix minor mlt_properties leak (coverity-1215702).
Fix minor memory leak in libebur (coverity-1215701).
Fix mlt_geometry leak in motion_est filter (coverity-1215700).
Fix possible out-of-bounds read (coverity-1215699).
Fix possible deadlock in kdenlivetitle (coverity-1215697).
Fix possible null pointer dereference (coverity-1215693).
Fix possible null pointer dereference (coverity-1215695).
Fix possible null pointer dereference (coverity-1215696).