- implement JS changes for material design too

- bug fix for default session code regex
- default to exporting items when exporting run JSONs
- all newly created surveys have a default field "iteration" which is simply an auto-increment number from 1 to number of responses to survey

minify js

minor release, ease integration with labjs, allow default email accounts

v0.21.0 easier dockerisation, reduce cookie problems

update installation instructions

Finish Release: v0.20.7

Hotfix: v0.20.6

Release v0.20.5

Release v0.20.4