CCPackageDownload cancelling will reset status to initial.

Documentation headers updated.

Author: NickyWeber

UnitTests/CCPackageDownloadTests.m

@@ -294,6 +294,7 @@ - (void)testCancelDownload
 
     NSFileManager *fileManager = [NSFileManager defaultManager];
     XCTAssertFalse([fileManager fileExistsAtPath:_download.localURL.path]);
+    XCTAssertEqual(_package.status, CCPackageStatusInitial);
 }
 
 - (void)testPauseDownload

cocos2d/CCPackageDownload.h

@@ -49,11 +49,12 @@
 
 /**
  *  Stops the download and deletes the download file
+ *  Status of package is reset to CCPackageStatusInitial.
  */
 - (void)cancel;
 
 /**
- *  Stops the download
+ *  Pauses the download.
  */
 - (void)pause;
 

cocos2d/CCPackageDownload.m

@@ -27,7 +27,7 @@ @implementation CCPackageDownload
 - (instancetype)initWithPackage:(CCPackage *)package localURL:(NSURL *)localURL
 {
     NSAssert(package != nil, @"package must not be nil");
-    NSAssert(localURL != nil, @"installURL must not be nil");
+    NSAssert(localURL != nil, @"localURL must not be nil");
 
     self = [super init];
     if (self)
@@ -63,6 +63,8 @@ - (void)cancel
     [self closeConnectionAndFileHandle];
 
     [self removeTempAndDownloadFile];
+
+    _package.status = CCPackageStatusInitial;
 }
 
 - (void)pause