Fixes date parsing for ISO format.
Fixes some graphs.
Merge branch 'gh-pages' of github.com:whybug/whybug-server into gh-pages

* 'gh-pages' of github.com:whybug/whybug-server:
  Updates old stats.
  Update metrics
  Adds stats
  Update metrics
  Update metrics
  Update metrics
  Update metrics
  Update metrics
  Update metrics
  Update metrics