Fix some NotImplementedExceptions

src/Main/Base/Project/Src/Project/MSBuildBasedProject.cs

@@ -568,7 +568,7 @@ namespace ICSharpCode.SharpDevelop.Project
 		}
 		
 		/// <summary>
-		/// Changes all instances of a property in the <paramref name="project"/> by applying a method to its unevaluated value.
+		/// Changes all instances of a property in the project by applying a method to its unevaluated value.
 		/// 
 		/// The method will be called within a <code>lock (project.SyncRoot)</code> block.
 		/// </summary>

src/Main/ICSharpCode.SharpDevelop.Widgets/Project/SideBar/SideTab.cs

@@ -545,7 +545,7 @@ namespace ICSharpCode.SharpDevelop.Widgets.SideBar
 			
 			public void CopyTo(SideTabItem[] array, int arrayIndex)
 			{
-				throw new NotImplementedException();
+				list.CopyTo(array, arrayIndex);
 			}
 		}
 	}

src/Main/SharpDevelop/Dom/MemberModel.cs

@@ -63,7 +63,6 @@ namespace ICSharpCode.SharpDevelop.Dom
 		
 		public Accessibility Accessibility {
 			get { return member.Accessibility; }
-			set { throw new NotImplementedException(); }
 		}
 		
 		public DomRegion Region {

src/Main/SharpDevelop/Project/Solution.cs

@@ -40,6 +40,7 @@ namespace ICSharpCode.SharpDevelop.Project
 			
 			fileService.FileRenamed += FileServiceFileRenamed;
 			fileService.FileRemoved += FileServiceFileRemoved;
+			changeWatcher.Enable();
 		}
 		
 		public void Dispose()
@@ -77,7 +78,18 @@ namespace ICSharpCode.SharpDevelop.Project
 				return base.Name;
 			}
 			set {
-				throw new NotImplementedException();
+				var newFileName = directory.CombineFile(value + ".sln");
+				changeWatcher.Disable();
+				try {
+					if (!FileService.RenameFile(fileName, newFileName, false)) {
+						return;
+					}
+					base.Name = value;
+					this.FileName = newFileName;
+					changeWatcher.Rename(newFileName);
+				} finally {
+					changeWatcher.Enable();
+				}
 			}
 		}
 		#endregion