Merge branch 'rework'
bug fix
bug fix to main.go
renamed constructor methods. Added some helper methods to the MetaData type. Reorganized file blob creation.
moved file blob related code into its own file.
fixed bug where file meta blob didn't have refs to its payload.
fixed bug in min function
added helper func that creates meta and blobs for all items recursively in a dir.
if db dir doesn't exist, it is created.
dir creation permission bug fix
dir creation permission bug fix
added crude get/put web server
better error checking in static file serving
minor tweaks
working on file upload.
figured out how to retrieve uploaded bytes.
added blob kind type and consts for it. server now handles file upload puts.
renamed upload app dir
added css to site and link to file upload page.
reverted to original fupload index.html