add missing context info to event handlers
add some user account extensions
support accounts created without passwords
update owin to newer app info semantics
update nosql samples
update migration for optional password
remove nancy sample
Revert "remove nancy sample"

This reverts commit f84ad1ca83a4826c7aa9fabc762802fadef780b0.
get owin working with recent MR changes
rework for owin/katana
remove katana types from public API
update for changes in two factor auth policy
get groups sample working again
get customizations sample working again
allow baseUrl as ctor param
added a flag for issuing persistent login cookies
add russian resx
remove key properties from models
tweaks to get migrations working with new key structure
get down migration to work