[FEATURE] add sourcemap option to typescript compiler

gulp/js-compilers/typescript.js

@@ -41,6 +41,10 @@ module.exports = function() {
 					}))
 					.pipe(gulp.dest(settings.getPath() + '/' + config.directories.javascriptDest));
 			} else {
+				let sourcemapsPath;
+				if (config.directories.hasOwnProperty('javascriptSourceMaps') && config.directories.javascriptSourceMaps !== 'inline') {
+					sourcemapsPath = path.relative(settings.getPath() + '/' + config.directories.javascriptDest, settings.getPath() + '/' + config.directories.javascriptSourceMaps);
+				}
 				return browserify
 					.plugin(tsify, {noImplicitAny: true})
 					.bundle()
@@ -56,7 +60,7 @@ module.exports = function() {
 					.pipe(plugins.checkFilesize({
 						enableGzip: true
 					}))
-					.pipe(plugins.sourcemaps.write(path.relative(settings.getPath() + '/' + config.directories.javascriptDest, settings.getPath() + '/' + config.directories.javascriptSourceMaps)))
+					.pipe(plugins.sourcemaps.write(sourcemapsPath))
 					.pipe(gulp.dest(settings.getPath() + '/' + config.directories.javascriptDest));
 			}
 		});