Hacks to get biocro running using csv output (rather than export to PEcAn's netCDF standard)
added knitr to dependencies in order to support .Rmd vignettes
Merge branch 'biocro-module' of github.com:PecanProject/pecan
Merge branch 'rename-pecan.ed' of github.com:PecanProject/pecan
renaming package and updating tests in PEcAn.ED2
added sample data for biocro vignette
updated tests of PEcAn.ED package
renamed run.template.ED2
added test files, updated tests

Merge branch 'master' into rename-pecan.ed

Conflicts:
	models/ed/inst/tests/test.model2netcdf.ED2.R