New web configuration properties in the spec

[jarias]

The following config properties where introduce in the spec, and we currently do not support them. We probably need separate tickets for each functionality, this ticket is just to track the change.

stormpath.web.baseDomain
stormpath.web.multiTenancy.enabled
stormpath.web.multiTenancy.useSubdomain
stormpath.web.register.form.fields.organizationNameKey.enabled
stormpath.web.register.form.fields.organizationNameKey.visible
stormpath.web.register.form.fields.organizationNameKey.label
stormpath.web.register.form.fields.organizationNameKey.placeholder
stormpath.web.register.form.fields.organizationNameKey.required
stormpath.web.register.form.fields.organizationNameKey.type
stormpath.web.login.form.fields.organizationNameKey.enabled
stormpath.web.login.form.fields.organizationNameKey.visible
stormpath.web.login.form.fields.organizationNameKey.label
stormpath.web.login.form.fields.organizationNameKey.placeholder
stormpath.web.login.form.fields.organizationNameKey.required
stormpath.web.login.form.fields.organizationNameKey.type