Adding openslide as a submodule
Include build instructions for openslide

and python bindings in the requirements
Getting started with openslide reader
Fix for shell=false in linux and refactor for base reader
Getting openslide working with openjpeg2
Bugfix from virtual machine while creating session
Upload ptif files
Refactor uploader code into individual files
Making uploader refactor work
fixing up openslide reader'
Reading image data from OpenslideReader
Pyramid uploader runnign with openslide, not ready
Option to re-upload an image

- option --overwrite
- removes the image from the image store (both image record and collection)
Going from thread to multiprocess
choosing the reader in uploader
Bugfix for remove image from imagestore
First working implementation
Elegant way to launch processes
fix: Inserting all tiles
Fixed common_utils for good