[processing] if min and max values not set use redefined ones
fix qml file for directed edge layer in topoviewer plugin
Incomplete: move responsibility for drawing selection handles to new class
Fix drag move of multi-items, fix movement snap to grid and alignment objects
Begin reimplementing item resize
Implement resizing
Fix resize alignment to snap guides
Fix snapping to guide lines, cleanup methods moved to qgscomposerhandles
Fix clearing selection by clicking outside selection