Support installing the latest version of a NuGet package in a project template.

src/AddIns/Misc/PackageManagement/Project/Src/IPackageReferenceFile.cs

@@ -11,5 +11,6 @@ namespace ICSharpCode.PackageManagement
 	{
 		IEnumerable<PackageReference> GetPackageReferences();
 		void DeleteEntry(string id, Version version);
+		void Delete();
 	}
 }

src/AddIns/Misc/PackageManagement/Project/Src/PackageReferenceFile.cs

@@ -3,16 +3,19 @@
 
 using System;
 using System.Collections.Generic;
+using ICSharpCode.SharpDevelop;
 
 namespace ICSharpCode.PackageManagement
 {
 	public class PackageReferenceFile : IPackageReferenceFile
 	{
 		NuGet.PackageReferenceFile file;
+		string fileName;
 		
 		public PackageReferenceFile(string fileName)
 		{
-			file = new NuGet.PackageReferenceFile(fileName);
+			this.fileName = fileName;
+			this.file = new NuGet.PackageReferenceFile(fileName);
 		}
 		
 		public IEnumerable<NuGet.PackageReference> GetPackageReferences()
@@ -24,5 +27,10 @@ namespace ICSharpCode.PackageManagement
 		{
 			file.DeleteEntry(id, version);
 		}
+		
+		public void Delete()
+		{
+			FileService.RemoveFile(fileName, false);
+		}
 	}
 }

src/AddIns/Misc/PackageManagement/Project/Src/PackageReferencesForProject.cs

@@ -40,9 +40,7 @@ namespace ICSharpCode.PackageManagement
 		{
 			GetPackageReferences();
 			IPackageReferenceFile file = PackageReferenceFile;
-			foreach (PackageReference packageReference in packageReferences) {
+			file.Delete();
-				file.DeleteEntry(packageReference.Id, packageReference.Version);
-			}
 		}
 		
 		void GetPackageReferences()

src/AddIns/Misc/PackageManagement/Test/Src/Helpers/FakePackageReferenceFile.cs

@@ -30,5 +30,12 @@ namespace PackageManagement.Tests.Helpers
 			var packageReference = new PackageReference(id, version);
 			EntriesDeleted.Add(packageReference);
 		}
+		
+		public bool IsDeleteCalled;
+		
+		public void Delete()
+		{
+			IsDeleteCalled = true;
+		}
 	}
 }

src/AddIns/Misc/PackageManagement/Test/Src/PackageReferencesForProjectTests.cs

@@ -116,7 +116,7 @@ namespace PackageManagement.Tests
 		}
 		
 		[Test]
-		public void RemovePackageReferences_TwoPackageReferencesInPackageConfigFile_RemovesPackageReferenceFromFile()
+		public void RemovePackageReferences_TwoPackageReferencesInPackageConfigFile_PackageReferenceFileIsDeleted()
 		{			
 			TestableProject project = CreateProject();
 			CreatePackageReferencesForProject(project);
@@ -125,13 +125,9 @@ namespace PackageManagement.Tests
 			
 			packageReferencesForProject.RemovePackageReferences();
 			
-			List<PackageReference> packageReferencesRemoved = fakePackageReferenceFile.EntriesDeleted;
+			bool deleted = fakePackageReferenceFile.IsDeleteCalled;
 			
-			var expectedPackageReferences = new List<PackageReference>();
+			Assert.IsTrue(deleted);
-			expectedPackageReferences.Add(new PackageReference("One", new Version("1.0.3.2")));
-			expectedPackageReferences.Add(new PackageReference("Two", new Version("2.0.44")));
-			
-			PackageReferenceCollectionAssertAreEqual(expectedPackageReferences, packageReferencesRemoved);
 		}
 	}
 }