Switch to topic branch that focuses on swift-authentication

* remove google authentication and no auth code

* move the swift auth filemanager to the root

The google authentication and no auth code will still be in history
for reference.
rename ContainersList.js to containerslist.js
rename CreateContainer.js to createcontainer.js
rename CreateDirectory.js to createdirectory.js
Rename CreateFile.js to createfile.js
Rename dialogButtons.js to dialogbuttons.js

* Apparently nothing is using dialogbuttons.js at this time.
Rename dialogForm.js to dialogform.js
Rename errorMsg.js to errormsg.js
rename extendNative.js to extendnative.js
Rename FileClick.js to fileclick.js
Rename fileEditor.js to fileeditor.js
Rename fileExecutor.js to fileexecutor.js
rename FilesList.js to fileslist.js
Rename Navigation.js to navigation.js
Rename Swift.js to swift.js
Rename Toolbar.js to toolbar.js
Rename uploadButtons.js to uploadbuttons.js
Fix whitespace

* Change to a consistent indentation strategy within swift.js
Add SwiftV1.request helper

Previously, XMLHTTPRequests that needed swift authentication were made
in almost every function and the authentication headers were manually
added.  This made it easy to accidentally forget to auth in a request.

Now we have SwiftV1.request, which will construct an xhr request that
includes the swift authentication headers.
Add handleXhr helper

There is a repeated logic pattern when handling responses from swift:
call some function on an error, success, notFound, or auth issue.
Classifying a response is always done using the same http status
criteria.  I've added a helper that takes the functions as input,
using defaults when a function is not provided.