add Tau Ceti data
add tauceti.py
Update demo.py

moving spot attempt
Update demo.py
Update demo.py
Update demo.py
clean up file structure
Merge branch 'master' of https://github.com/aidabehmard/starspot
to merge
Merge branch 'master' of https://github.com/aidabehmard/starspot
separate files in library
no interpolation in demo
fix critical shallow copy bug
add spec.py, spectroscopy demo
flesh out spec demo
time series simulation done
Merge pull request #1 from mattgiguere/master

tau ceti data added