Simplify logfile parser to spit out JSON

Part of the move to a javascript-based visualization
Interactive subscription stats plot.
Merge branch 'master' of git.debian.org:/git/pkg-exppsy/neurodebian

* 'master' of git.debian.org:/git/pkg-exppsy/neurodebian:
  ENH: 1 more "build-dependency" for the website
  BF: previous monkey-patch doesn't work with elderly backport of sphinx (1.0.7) on squeeze
  ENH: monkey patch regexp for english words -- we need to allow searching package names
  Updated submodules.