update build scripts and etc/apps/paraview3 settings for paraview-3.5 (cvs)

- The new cmake seems to be even smarter. If we try to use env variables in
  the .cmake files (eg, with And's sed fixup), they are rewritten in a
  subsequent re-make and take much longer).  Adjusting the compiler values
  themselves causes a full remake. On the positive side, disabling the rpath
  seems to mean we may not need any of this.

  In summary - yuck!