chore: update Makefile to move jar during install

Author: eshanholtz

Makefile

@@ -1,8 +1,10 @@
 .PHONY: install test test-integration clean
 
+VERSION := $(shell mvn help:evaluate -Dexpression=project.version | grep -e '^[^\[]')
 install:
 	@java -version || (echo "Java is not installed, please install Java >= 7"; exit 1);
 	mvn clean install -DskipTests=true -Dgpg.skip -B
+    cp target/java-http-client-$(VERSION).jar java-http-client.jar
 
 test:
 	mvn test