collectionID should appear before tags in product method

Mobile Buy SDK/Mobile Buy SDK Tests/BUYClientTest.m

@@ -184,7 +184,7 @@ NSString * const BUYFakeCustomerToken = @"dsfasdgafdg";
 
 - (void)testProductsInCollection
 {
-	BUYRequestOperation *task = (BUYRequestOperation *)[self.client getProductsPage:1 withTags:nil inCollection:@1 sortOrder:BUYCollectionSortCollectionDefault completion:^(NSArray<BUYProduct *> *products, NSUInteger page, BOOL reachedEnd, NSError *error) {}];
+	BUYRequestOperation *task = (BUYRequestOperation *)[self.client getProductsPage:1 inCollection:@1 withTags:nil sortOrder:BUYCollectionSortCollectionDefault completion:^(NSArray<BUYProduct *> *products, NSUInteger page, BOOL reachedEnd, NSError *error) {}];
 	XCTAssertEqualObjects(task.originalRequest.HTTPMethod, @"GET");
 	XCTAssertEqualObjects(task.originalRequest.URL.scheme, @"https");
 	XCTAssertEqualObjects(task.originalRequest.URL.host, @"test_shop");

Mobile Buy SDK/Mobile Buy SDK/Data/BUYClient+Storefront.h

@@ -216,14 +216,14 @@ typedef void (^BUYDataTagsListBlock)(NSArray <NSString *> * _Nullable tags, NSUI
  *  Fetches the products in the given collection with a given sort order
  *
  *  @param page         Index of the page requested
- *  @param tags  an array of tags which each product must contain
  *  @param collectionId The `collectionId` found in the BUYCollection object to fetch the products from
+ *  @param tags			An array of tags which each product must contain
  *  @param sortOrder    The sort order that overrides the default collection sort order
  *  @param block        (NSArray *products, NSUInteger page, BOOL reachedEnd, NSError *error)
  *
  *  @return the associated BUYRequestOperation
  */
-- (NSOperation *)getProductsPage:(NSUInteger)page withTags:(nullable NSArray <NSString *> *)tags inCollection:(nullable NSNumber *)collectionId sortOrder:(BUYCollectionSort)sortOrder completion:(BUYDataProductListBlock)block;
+- (NSOperation *)getProductsPage:(NSUInteger)page inCollection:(nullable NSNumber *)collectionId withTags:(nullable NSArray <NSString *> *)tags sortOrder:(BUYCollectionSort)sortOrder completion:(BUYDataProductListBlock)block;
 
 @end
 

Mobile Buy SDK/Mobile Buy SDK/Data/BUYClient+Storefront.m

@@ -160,10 +160,10 @@ static NSString * const BUYCollectionsKey = @"collection_listings";
 
 - (NSOperation *)getProductsPage:(NSUInteger)page inCollection:(NSNumber *)collectionId completion:(BUYDataProductListBlock)block
 {
-	return [self getProductsPage:page withTags:nil inCollection:collectionId sortOrder:BUYCollectionSortCollectionDefault completion:block];
+	return [self getProductsPage:page inCollection:collectionId withTags:nil sortOrder:BUYCollectionSortCollectionDefault completion:block];
 }
 
-- (NSOperation *)getProductsPage:(NSUInteger)page withTags:(NSArray <NSString *> *)tags inCollection:(NSNumber *)collectionId sortOrder:(BUYCollectionSort)sortOrder completion:(BUYDataProductListBlock)block
+- (NSOperation *)getProductsPage:(NSUInteger)page inCollection:(nullable NSNumber *)collectionId withTags:(nullable NSArray <NSString *> *)tags sortOrder:(BUYCollectionSort)sortOrder completion:(BUYDataProductListBlock)block
 {
 	NSMutableDictionary *params = @{
 									@"limit"         : @(self.pageSize),