Several command line and core changes

+ Add protos config command to add config files in config/
+ Renamed create --bare switch to --minimal
+ The create command now creates a simple skeleton
+ Add create --skeleton, which provides a complete app skeleton
+ The notFound and serverError methods now provide plain text
  responses if the #404 and #500 files are not present
+ The res.httpMessage method now provides plain text responses
  if the #msg template is not present.
+ Cleaned up skeleton html templates