Merge pull request #34 from KirillTer/master

Fix issue in CustomService with    “ if (!!serviceVersion) “

Author: ksv510

SDK/backendlessAPI/Classes/CustomService/CustomService.m

@@ -37,12 +37,15 @@ @implementation CustomService
 // sync methods with fault return (as exception)
 -(id)invoke:(NSString *)serviceName serviceVersion:(NSString *)serviceVersion method:(NSString *)method args:(NSArray *)args {
 
-    if (!serviceName)
+    if (!serviceName) {
         return [backendless throwFault:FAULT_NO_SERVICE];
-    if (!method)
+    }
+    if (!method) {
         return [backendless throwFault:FAULT_NO_SERVICE_METHOD];
-    if (!!serviceVersion)
+    }
+    if (!serviceVersion) {
         return [backendless throwFault:FAULT_NO_SERVICE_VERSION];
+    }
 
     NSArray *_args = @[backendless.appID, backendless.versionNum, serviceName, serviceVersion, method, args?args:@[]];
     return [invoker invokeSync:SERVER_CUSTOM_SERVICE_PATH method:METHOD_DISPATCH_SERVICE args:_args];