Revert "Remove obsolete version from docker compose files."

This reverts commit d343c2dcaee4c9054ed72a53493306b9e2c1375e.

docker-compose.build.yml

@@ -1,5 +1,6 @@
 # This configuration builds from Dockerfiles 
 # instead of pulling from opendronemap hub
+version: '2.1'
 services:
   db:
     build: ./db

docker-compose.dev.yml

@@ -1,3 +1,4 @@
+version: '2.1'
 services:
   webapp:
     entrypoint: /bin/bash -c "chmod +x /webodm/*.sh && /bin/bash -c \"/webodm/wait-for-postgres.sh db /webodm/wait-for-it.sh -t 0 broker:6379 -- /webodm/start.sh --create-default-pnode --setup-devenv\""

docker-compose.ipv6.yml

@@ -1,3 +1,4 @@
+version: '2.2'
 networks:
   default:
     enable_ipv6: true

docker-compose.nodemicmac.yml

@@ -2,6 +2,7 @@
 # a default processing node instance. This is best for users
 # who are just getting started with WebODM.
 
+version: '2.1'
 services:
   webapp:
     depends_on:

docker-compose.nodeodm.gpu.intel.yml

@@ -2,6 +2,7 @@
 # a default processing node instance. This is best for users
 # who are just getting started with WebODM.
 
+version: '2.1'
 services:
   webapp:
     depends_on:

docker-compose.nodeodm.gpu.nvidia.yml

@@ -2,6 +2,7 @@
 # a default processing node instance. This is best for users
 # who are just getting started with WebODM.
 
+version: '2.1'
 services:
   webapp:
     depends_on:

docker-compose.nodeodm.yml

@@ -2,6 +2,7 @@
 # a default processing node instance. This is best for users
 # who are just getting started with WebODM.
 
+version: '2.1'
 services:
   webapp:
     depends_on:

docker-compose.settings.yml

@@ -1,3 +1,4 @@
+version: '2.1'
 services:
   webapp:
     volumes:

docker-compose.ssl-manual.yml

@@ -1,4 +1,5 @@
 # This configuration adds the volumes necessary for SSL manual setup
+version: '2.1'
 services:
   webapp:
     volumes:

docker-compose.ssl.yml

@@ -1,4 +1,5 @@
 # This configuration adds support for SSL
+version: '2.1'
 volumes:
   letsencrypt:
     driver: local

docker-compose.worker-cpu.yml

@@ -1,3 +1,4 @@
+version: '2.2'
 services:
   worker:
     cpus: ${WO_WORKER_CPUS}

docker-compose.worker-memory.yml

@@ -1,3 +1,4 @@
+version: '2.1'
 services:
   worker:
     mem_limit: ${WO_WORKER_MEMORY}

docker-compose.yml

@@ -1,5 +1,6 @@
 # This configuration does not include a processing node
 # Which makes for faster setup times
+version: '2.1'
 volumes:
   dbdata:
   appmedia: