*updated expr to the latest version (still exhibits a crasher bug due to buggy free function).

*updated latest additions by Jonathan--still need following fixes:
1) enter-leave demos don't work at all (any demo involving enter-leave)
2) crasher in easing is still valid
3) spin-spin-spin crashes pd-l2ork when trying to close the patch while the image is spinning and being animated
4) curve-bbox is still having accuracy issues (tkpath issue)
5) polar clock still exhibits issues of warping curve (tkpath issue)
6) On the 15.events.pd change call is never issued--is this another side-effect of me not applying everything?
7) Is there a 14. patch for ds-tutorials? I didn't find one.
8) in ds-tutorials is gmon.out necessary or is this a stale file?