fix set master key deadlock
moved polling to a background worker from a generic worker
remove poll task
polling refactor
post tree history serialization fix
fix malformed published at and recieved at timestamps
create downloadpost
create pushpublic task
public file uploader abstraction stub in
created push public task, added to taskmanager
added public file upload calls
minor refactor
wip
delete file uploader, useless abstraction
added pushpublictask to factory
malformed published at var
public post wip
create limited download link with callback
updated getfilestrategy to download version of post at any specified directory
added methods to download file post at version