pull in progress report sketch
apply backend changes for progress bar imports
catch sequel validation errors and pass them along
add blocks to jsonmodel http requests to support streaming
support streaming response in importer client and frontend controller to manage it
wip frontend ui supports streaming import with realtime feedback
add a curl_as script for osx
abstract importer streams output always
add file_select text
add file_select text 2
streaming status control and error handling for backend
working import controller for XHR posts
WIP frontent xhr upload client functions
merge ajax and iframe versions of frontend progress bar
catch validation errors that arise before import processing starts
add some pseudo progress output for the xml transformation stage
update batch import spec to reflect change to response format
merge master into import branch and resolve cnflcts
fix what broke after merge
stream a response that can be treated as a single json record