added cancellation feature
added IST locale by default
preprod settings, preprod branch to have a testing instance on prod env
merging changes to preprod for testing

Merge branch 'refactoring' into preprod
changes for preprod env
added mysql user creation
added mysql user cleanup in init
corrected bug in date modification to add timezone
timezone correction

Merge branch 'refactoring' into preprod
correction for timezone
changes for timezone nan problems
Merge branch 'refactoring' into preprod
corrected launch to caontain preprod env
Merge branch 'preprod' into prod

Conflicts:
	mysql-init.txt
	settings.json