Compatible to Java 7

Author: shuklaalok7

client/build.gradle

@@ -27,8 +27,8 @@ android {
         }
     }
     compileOptions {
-        targetCompatibility JavaVersion.VERSION_1_8
-        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_7
+        sourceCompatibility JavaVersion.VERSION_1_7
     }
 }
 

client/src/test/java/in/clayfish/printful/test/OrdersApiClientTest.java

@@ -61,12 +61,14 @@ public void createANewOrder() {
 
     @Test
     public void testGetOrderData1() {
-        // TODO implement
+        Response<Order> orderResponse = client.getOrderData(1899732);
+        Assert.assertTrue(orderResponse.getCode() == 200);
     }
 
     @Test
     public void testGetOrderData2() {
-        // TODO implement
+        Response<Order> orderResponse = client.getOrderData("12331");
+        Assert.assertTrue(orderResponse.getCode() == 200);
     }
 
     @Test