Initial commit of scaffolding.

This is all, of course, highly subject to change.
Added git ignore.
Scaffolding documentation.
Added framed-out core.
Added guts to the PHP stream wrapper.
Added HTTP exception classes.
Added auth testing code.
Cleanup.
Working on the autoloader and SPR-0 compliance.
Added Response object.
Testing Atoum.
Added atoum to gitignore.
Added configuration methods.

I don't really like this, but for the time being, configuration
directives can be passed into Bootstrap.
Turned the Transport class into an abstract factory.

Currently, I am testing sharing a single instance of the HTTP
processor, but I'm not sure if this is worthwhile for long-
term maintenance.
Added notes about using Atoum.
Updated Bootstrap unit tests.
Added main ObjectStorage class.
Story #442: As a user I can authenticate with my Swift credentials.

This commit has various documentation updates for the above.
Added test/settings.ini to ignore.
Added general test case class.