make the homepage not take so long to load
rake task to compute identities from sessions
Merge branch 'identities'

* identities:
  rake task to compute identities from sessions
tests for event class
event.parse
page view specs
session spec
remove old jobs spec
Merge branch 'tests'

* tests:
  remove old jobs spec
  session spec
  page view specs
  event.parse
  tests for event class

Closes #20