added GitlabProjectMember, GitlabMilestone and fixed the editIssue

method

src/main/java/org/gitlab/api/GitlabAPI.java

@@ -14,10 +14,12 @@
 import org.gitlab.api.models.GitlabCommit;
 import org.gitlab.api.models.GitlabIssue;
 import org.gitlab.api.models.GitlabMergeRequest;
+import org.gitlab.api.models.GitlabMilestone;
 import org.gitlab.api.models.GitlabNote;
 import org.gitlab.api.models.GitlabProject;
 import org.gitlab.api.models.GitlabProjectHook;
 import org.gitlab.api.models.GitlabSession;
+import org.gitlab.api.models.GitlabProjectMember;
 
 /**
  * Gitlab API Wrapper class
@@ -257,14 +259,11 @@ private void applyIssue(GitlabHTTPRequestor requestor, int projectId,
 
 		requestor.with("title", title)
 				.with("description", description)
-				.with("labels", labels);
-
-		if (assigneeId != 0) {
-			requestor.with("assignee_id", assigneeId);
-		}
-
-		if (milestoneId != 0) {
-			requestor.with("milestone_id", milestoneId);
+				.with("labels", labels)
+				.with("milestone_id", milestoneId);
+
+		if(assigneeId != 0) {
+			requestor.with("assignee_id", assigneeId == -1 ? 0 : assigneeId);
 		}
 	}
 
@@ -283,4 +282,22 @@ public GitlabNote createNote(Integer projectId, Integer issueId, String message)
     public GitlabNote createNote(GitlabIssue issue, String message) throws IOException {
     	return createNote(issue.getProjectId(), issue.getId(), message);
     }
+
+    public List<GitlabMilestone> getMilestones(GitlabProject project) throws IOException {
+    	return getMilestones(project.getId());
+    }
+
+    public List<GitlabMilestone> getMilestones(Integer projectId) throws IOException {
+    	String tailUrl = GitlabProject.URL + "/" + projectId + GitlabMilestone.URL;
+    	return Arrays.asList(retrieve().to(tailUrl, GitlabMilestone[].class));
+    }
+
+    public List<GitlabProjectMember> getProjectMembers(GitlabProject project) throws IOException {
+    	return getProjectMembers(project.getId());
+    }
+
+    public List<GitlabProjectMember> getProjectMembers(Integer projectId) throws IOException {
+    	String tailUrl = GitlabProject.URL + "/" + projectId + GitlabProjectMember.URL;
+    	return Arrays.asList(retrieve().to(tailUrl, GitlabProjectMember[].class));
+    }
 }

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

@@ -23,7 +23,7 @@ public enum Action {
 	private String _title;
 	private String _description;
 	private String[] _labels;
-	private String _milestone;
+	private GitlabMilestone _milestone;
 
 	private GitlabUser _assignee;
 	private GitlabUser _author;
@@ -84,11 +84,11 @@ public void setLabels(String[] labels) {
 		_labels = labels;
 	}
 
-	public String getMilestone() {
+	public GitlabMilestone getMilestone() {
 		return _milestone;
 	}
 
-	public void setMilestone(String milestone) {
+	public void setMilestone(GitlabMilestone milestone) {
 		_milestone = milestone;
 	}
 

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

@@ -0,0 +1,100 @@
+package org.gitlab.api.models;
+
+import java.util.Date;
+
+import org.codehaus.jackson.annotate.JsonProperty;
+
+public class GitlabMilestone {
+
+	public static final String URL = "/milestones";
+
+	private int _id;
+	private int _iid;
+	private int _projectId;
+	private String _title;
+	private String _description;
+
+	@JsonProperty("due_date")
+	private Date _dueDate;
+
+	private String _state;
+
+	@JsonProperty("updated_date")
+	private Date _updatedDate;
+
+	@JsonProperty("created_date")
+	private Date _createdDate;
+
+	public int getId() {
+		return _id;
+	}
+
+	public void setId(int id) {
+		_id = id;
+	}
+
+	public int getIid() {
+		return _iid;
+	}
+
+	public void setIid(int iid) {
+		_iid = iid;
+	}
+
+	public int getProjectId() {
+		return _projectId;
+	}
+
+	public void setProjectId(int projectId) {
+		_projectId = projectId;
+	}
+
+	public String getTitle() {
+		return _title;
+	}
+
+	public void setTitle(String title) {
+		_title = title;
+	}
+
+	public String getDescription() {
+		return _description;
+	}
+
+	public void setDescription(String description) {
+		_description = description;
+	}
+
+	public Date getDueDate() {
+		return _dueDate;
+	}
+
+	public void setDueDate(Date dueDate) {
+		_dueDate = dueDate;
+	}
+
+	public String getState() {
+		return _state;
+	}
+
+	public void setState(String state) {
+		_state = state;
+	}
+
+	public Date getUpdatedDate() {
+		return _updatedDate;
+	}
+
+	public void setUpdatedDate(Date updatedDate) {
+		_updatedDate = updatedDate;
+	}
+
+	public Date getCreatedDate() {
+		return _createdDate;
+	}
+
+	public void setCreatedDate(Date createdDate) {
+		_createdDate = createdDate;
+	}
+
+}

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

@@ -0,0 +1,17 @@
+package org.gitlab.api.models;
+
+public class GitlabProjectMember extends GitlabUser {
+
+	public static final String URL = "/members";
+
+	private int _accessLevel;
+
+	public int getAccessLevel() {
+		return _accessLevel;
+	}
+
+	public void setAccessLevel(int accessLevel) {
+		_accessLevel = accessLevel;
+	}
+
+}