The script `install.sh` largely copies the template from the hosted-app-utils
project, with some key changes:
1. replace template parameters (`{{VAR}}`) with hard-coded values
2. define variables for org, app, install root, etc
3. if old version detected, remove data folder before installing update
The modified script will:
1. delete v1 data
2. update normally when v2 or newer installations are present
