added orgmode support
cleaned up config parsing, improved summary output
consolidated warnings in summary
removed debug print
added readme
more markup for README
allow offset as date arg, combined prompts after editing
allow specifying a different config file
updated docs
merged sessionfile and tempfile
added option 'Quit and discard session'
default to yesterday if it's before 4pm
don't fail if activities can't be retrieved
added date param value 'today', fixed relative dates