Update image building

- Removed 'docker' profile
- Removed auto building and pushing image from mvn phases
- Unified image name through project
- Updated README

Signed-off-by: Michal Banka <michal.banka@nokia.com>
Change-Id: I20e5e21d61b5e0283f9de6b9d0b2e0988328537a
Issue-ID: DCAEGEN2-2573
diff --git a/Makefile b/Makefile
index fcf3f44..d675741 100644
--- a/Makefile
+++ b/Makefile
@@ -12,7 +12,7 @@
 
 docker:
 	@echo "Building ves-openapi-manager docker image"
-	@$(DOCKER) build --tag ves-openapi-manager:latest .
+	@$(DOCKER) build --tag $(IMAGE):latest .
 
 run:
 	@echo "Starting ves-openapi-manager docker containers"