Use a (perhaps relative) base href for resolution rather than a string
prefix

Also, fix the opam.ocaml.org link on the front page
Relativize all links; remove href_prefix/href_base
Fix package count without statistics
CHANGES
rename repo.xhtml -> universe.xhtml
Template: display the parsing error cleanly if the templates are malformed
Provide XML parse error location in error message
Factor home page into content/home/xhtml
New dependency version constraint in CHANGES
Use ISO 8601 dates in Home's news section
Merge pull request #68 from dsheets/factor

Factor home page