added demo to BioCro
fixing bugs to get demo to work
minor formatting, fixing merge
updated BioCro demo

Merge branch 'biocro-module' of github.com:PecanProject/pecan into biocro-module

Conflicts:
	models/biocro/BioCro_demo.Rmd
	models/biocro/inst/extdata/misp.xml
debugged biocro demo; added use of model2netcdf.BIOCRO to end of biocro.Rscript
Merge branch 'master' into biocro-module
pointed globalbiocro.Rscript to inputs on biocluster
revised globalbiocro.Rscript for use with complete cruncep file, on biocluster
Merge branch 'master' into biocro-module