Merge pull request #52 from FrantaM/FrantaM-patch-1

Fix name of json property

src/main/java/org/gitlab/api/models/GitlabMergeRequest.java

@@ -35,7 +35,7 @@ public class GitlabMergeRequest {
     @JsonProperty("source_project_id")
     private Integer sourceProjectId;
 
-    @JsonProperty("target_projectId")
+    @JsonProperty("target_project_id")
     private Integer targetProjectId;
 
     @JsonProperty("milestone_id")