Migrate to python 3.7

• migrate back-end to python 3.7 (from 2.7)
• use pymysql instead of mysql.connect in authorisation step to prevent infinite hang
• use .read_csv instead of .from_csv in pandas metadata step in loader

Compound sets for unique targets

fixes the bug where all compound sets are shown for all targets

Front-end RHS

• computed molecules on RHS

Serve all uploaded data

• Add field 'zip_archive' to Target model
• On upload of data, data is moved to media/targets and zipped up
• location passed to Target model
• all uploaded data then accessible to users via path at 'zip_archive'

Include metadata in Targets view

• Include metadata file in targets view
• include code to attach metadata in loader
• include code to allow download of metadata from endpoint

Increase RHS data upload size and text to bools

Incorporates backend pull request #176 changes:

• Increases upload size to 25 mb
• Bools from text scores
• Creates data directories for uploaded data
• Changes Docker compose settings to use Postgres DB

RHS liqourice default view and italic ranks

Updating production with pull requests:
#374 - Set default view of ligands as liqourice
#372 - Display rank in italics on RHS

Computed Sets

Introduction of computed sets, which are sets of molecules that have had their 3D structure calculated by some external computational methods.

Authentication update

New important code in the back-end to re-enable authentication through CAS and against ispyb, which broke when we lost the site-site VPN.

First AWX production release

Merge pull request #39 from InformaticsMatters/im-travis

Changes for kubernetes (a 'heads-up' PR)