Added dummy data from woodland brewing
clarification
Smoother curves, proper 2nd degree polynomial for yeast attenuation
plotting different yeast types now has different colors

legend also added.
correct quotes
Added png
Merge branch 'devel' of https://github.com/NNBL/SpeidelTips into devel
Update mash_temp_vs_attenuation.csv
added image
removed dummy data
updated image
separated the two plots in methods

Need to restore the savefig function
added savefig
Tweaked limits, added legend for efficiency
added requirement, removed unnecessary # before comment
Formattin changes minor/major ticks
use zip instead of i++/index

Changed efficiency plot to use scatter instead of line plot
pep8 and pylint fixes
Merge branch 'devel'