removed requirement that settings file have database, model, and run information. Now, only PFT is required
added Rmd file to visualize relationshps among functions.
created separate settings package
merge with master
updates to BioCro module; still broken
renamed read.outputs to convert.outputs
removed call to read.output in convert.outputs
updated workflows and NAMESPACE
removed bogus model parameter to read.output (was not in function definition).
minor change to get.model.output.BIOCRO
started working on writing run.sh from write.configs.BIOCRO
updated get.results function to accept settings as an argument; now it is model agnostic
added pecan.biocro.xml to tests/ folder
updated documentation for get.results (plus a few trivial changes to documentation)
Merge branch 'master' into settings-pkg
updated settings package DESCRIPTION and moved to top level directory
Merge branch 'master' of github.com:PecanProject/pecan
added tests to settings-pkg
added settings package

Merge branch 'settings-pkg'

Conflicts:
	db/R/read.settings.R
	settings/R/read.settings.R
	settings/inst/tests/test.read.settings.R
	utils/R/read.settings.R
added settings package

Merge branch 'settings-pkg'
Removed read/check settings documentation for PEcAn.DB (now in settings package)
added PEcAn.settings to PEcAn.all dependencies