Before this fix, PasteCanvas' "time offset" values were being reflected in the positi...

Before this fix, PasteCanvas' "time offset" values were being reflected in the position of the waypoints in the timeline of parent PasteCanvases, but not in the PasteCanvas itself.  This fix adds a preprocessor macro ADJUST_WAYPOINTS_FOR_TIME_OFFSET (to node.h) which enables the offsetting of waypoints for all PasteCanvases when defined.  It's undefined though, because offsetting waypoints doesn't yet work fully;  see the TODO at the end of layer_pastecanvas.cpp for details.

git-svn-id: http://svn.voria.com/code@944 1f10aa63-cdf2-0310-b900-c93c546f37ac