add get folder/folder items to client; redo namespaces
make curl data injectable for testing
make rudimentary mapping function in model
namespace corrections; moved error function to model
namespace corrections; add get folder info; begin work on retrieving all folders
added a root folder property; not sure if getFolders retrieval should parse the items collection. stubbing for now b/c I don't think I'll need a folders list for the project this will be used in.