call doesnt use "bits", just saves basic call
Workflow returns object of class "zoonWorkflow"
ASCII workflow in ?workflow. Closes #33
Docs for chain written to reflect fact that it does nothing.
Get sensibly formated call. Closes #36
Broken environments in GetModuleList fixed.
splitCall function written.
LoadModule for module to namespace, GetModule reading from namespace or repo
Rerunworkflow works most basic way.
Not yet added from"D2
*"from" argument which determines where to start.
Error messages and save to tmpZoonWorkflow moved to ErrorAndSave().
Passing down environments to allow cleanup of workflow function.
Worflow code tidied.
Closes #39. Length if statements put in DoModelModules etc. in DoModuleFunctions.R
tryCatch errors written as a function to tidy.
pasting call neatened up.
Rerun workflow from any point
Rerun workflow defaults to running from first NULL part of workflow object.
Closes #34.
README updated.
Banner added to README.md
Function ChangeWorkflow added.
Specificy which modules to change, then rerun workflow keeping as much of old workflow as possible.
Author and email added to BuildModule.
Closes #35.

Closes #37.
Gets in useful format for #35.
Few more checks in BuildModule