Sandor's edits

Made all marked edits to the .tex source you provided. Key aspects:
      - Did a spin on abstract and introduction to convince the
reviewers that
         this is exciting stuff and they should not even dare to think
about rejecting it.
         Please check if you like the outcome - and whether the claims
are accurate,
         despite of the rhetorics.
      - Added a paragraph to "Related work" on tile assembly. I think
this
         matters - and it strengthens our case.
     - Lots of little things throughout the paper - refer to the scan.
Finished TODO section
fixed some small typos prior to big review
Newer intro (was awkward)