Create new conf files with right indent settings

If you are prefer to use spaces instead of tabs - in most cases you
don't want to see tabs anywhere (copy paste issues with other files).

This fixes several workflows:

- Creating new Debug file
- Creating new Tasks file
- Showing global settings (this one is cached, so it shows for the first
  time only right indentation, if you will change it will show old
  indentation till restart)

src/vs/workbench/parts/debug/node/debugConfigurationManager.ts

@@ -287,12 +287,16 @@ export class ConfigurationManager implements debug.IConfigurationManager {
 				return null;
 			}
 
-			return this.massageInitialConfigurations(adapter).then(() =>
-				JSON.stringify({
-					version: '0.2.0',
-					configurations: adapter.initialConfigurations ? adapter.initialConfigurations : []
-				}, null, '\t')
-			);
+			return this.massageInitialConfigurations(adapter).then(() => {
+				let editorConfig = this.configurationService.getConfiguration<any>();
+				return JSON.stringify(
+					{
+						version: '0.2.0',
+						configurations: adapter.initialConfigurations ? adapter.initialConfigurations : []
+					},
+					null,
+					editorConfig.insertSpaces ? strings.repeat(' ', editorConfig.tabSize) : '\t');
+			});
 		});
 	}