Account.email_verification_token is read-only property
rename Resource.readwrite_attrs to writable_attrs

Some of the writable attributes are actually not readable (password).
add missing Account.tenant attribute
add UNVERIFIED status to Account resource
move Account.verify_email_token back to AccountList
add missing Directory.tenant attribute
add missing Group.account_memberships attribute
mark Tenant.name and Tenant.key as writable attributes
there is not TenantList
don't import Client and Error directly into stormpath package
define stormpath.__version__ and use it for HTTP requests and in setup
don't allow requests to automatically follow a redirect

We need to manually sign the new URL for the digest auth to work.
Now that it works, we can enable it by default.