Added three files to photosynthesis module

C3 Species.csv
C3 photomodel.r
Documentations.docx
Merge pull request #97 from mdietze/master

get.sample was failing with one-parameter distributions
exported derive traits; added RPostgreSQL to PEcAn.DB suggests
added more flexibility to pecan.worldmap function
updated documentation, added logging, moved transform.nas to meta-analysis package PEcAn.MA (where it is used)
print all convergence diagnostics at end of MA; added meta-analysis diagnostic plots using ggmcmc if package is installed; exported pecan.ma
minor code cleaning and updates to documentation in PEcAn.MA module
merge
fixed error using ggmcmc
updated documentation
added ggmcmc output (default FALSE) as option because it is slow
updated documentation for PEcAn.settings
enabled check.settings to work with model$name but no database
added demo to BioCro
Merge branch 'master' of github.com:PecanProject/pecan
updated fixed paths in global biocro script

to point to files on ebi-forecast
Merge branch 'master' of github.com:PecanProject/pecan
Merge pull request #98 from lovelilyinfall/master

Added three files to photosynthesis module
make sure settings$model$id
copied results to wrong folder, work with tcsh on geo.bu.edu