- links to footnotes were fixed by deferring the loading of hyperref until
   after footmisc.
 - some cross-document links were wrong

And some other minor refinements

 - cover page:
    * remove explicit copyright notice
    * add same acknowledgment as in papers
 - use a single main makefile
 - move together common images
 - set image search path to common_tex/img
 - include a unified tex header file