Update and rename RCurl_Chla_SST.R to Environmental_Variables_Extract.R

This script needs to be automated to easily input the desired variables for each model. Otherwise, I can create separate runs for each model like I was doing before, but this is not ideal if the model may be changed in the future.
Update WhaleWatch_Run.R

Renaming the extraction file.
Update Predict_GAMM.R

These are some basic, broad fixes that should be able to run when testing the GAMMs. This relies on the assumption there are 1:40 models starting with "bwhaleGAMM". This is one part that still needs to be fixed to be more flexible (eg the number/list of files being input).
Update Plot_FitMean_GMT.R

Basic description added
Merge pull request #3 from AHoover/Aimee

Aimee