Added end date to --tsv view.

Minor change, but forked the project as it would mess other peoples TSV
outputs. Don't know if that bothers anyone, but hey.
Updated --tsv output docs.
Support fuzzy dates.  Fixes #11.
That space was bugging me
Whoops, should really import the real library
Merge remote-tracking branch 'upstream/FuzzyDates'
Merge branch 'master' of github.com:birdslikewires/gcalcli into birdslikewires-master
simplejson is the base for json, use stdlib if simplejson isn't there
Update everything to show 2.4 release
Merge tag 'v2.4' into v3.1