Revert "Fix #63 - don't move graph on click (possible side effects?)"
Revert "Fix #63 - don't move graph on click (possible side effects?)"

This reverts commit 5c5f9a8cfe3edd6f1df31ab00885e58e4a36bfd1.

reopen #63

this fix causes regressions - the update function does two things:
1. updates link & node graphical representation
2. causes the force layout to reposition links and edges (using tick
  to selectively do that)

I need to change #2 without affecting #1.

ozFri/rhizi,shlomif/rhizi,ozFri/rhizi,Rhizi/rhizi,cben/rhizi,yuvadm/rhizi,ozFri/rhizi,tlevine/rhizi,shlomif/rhizi,tlevine/rhizi,tlevine/rhizi,Rhizi/rhizi,yuvadm/rhizi,ozFri/rhizi,shlomif/rhizi,shlomif/rhizi,cben/rhizi,cben/rhizi,yuvadm/rhizi,Rhizi/rhizi,tlevine/rhizi,yuvadm/rhizi,Rhizi/rhizi,cben/rhizi