Update xterm

Removed Terminal.send (private API).

package.json

@@ -50,7 +50,7 @@
     "vscode-nsfw": "1.0.17",
     "vscode-ripgrep": "^1.0.1",
     "vscode-textmate": "^4.0.1",
-    "vscode-xterm": "3.6.0-beta13",
+    "vscode-xterm": "3.7.0-beta1",
     "yauzl": "^2.9.1"
   },
   "devDependencies": {

src/typings/vscode-xterm.d.ts

@@ -692,7 +692,7 @@ declare module 'vscode-xterm' {
 			translateBufferLineToString(lineIndex: number, trimRight: boolean): string;
 		};
 
-		send(text: string): void;
+		handler(text: string): void;
 
 		/**
 		 * Emit an event on the terminal.

src/vs/platform/driver/electron-browser/driver.ts

@@ -207,7 +207,7 @@ class WindowDriver implements IWindowDriver {
 			return TPromise.wrapError(new Error('Xterm not found'));
 		}
 
-		xterm._core.send(text);
+		xterm._core.handler(text);
 
 		return TPromise.as(null);
 	}

yarn.lock

@@ -6125,9 +6125,9 @@ vscode-textmate@^4.0.1:
   dependencies:
     oniguruma "^7.0.0"
 
-vscode-xterm@3.6.0-beta13:
-  version "3.6.0-beta13"
-  resolved "https://registry.yarnpkg.com/vscode-xterm/-/vscode-xterm-3.6.0-beta13.tgz#88c511041beb9f84fa63ed52fec074c5ccaff296"
+vscode-xterm@3.7.0-beta1:
+  version "3.7.0-beta1"
+  resolved "https://registry.yarnpkg.com/vscode-xterm/-/vscode-xterm-3.7.0-beta1.tgz#c1af64a25ff2f157daecce2326277c1e51acb80d"
 
 vso-node-api@^6.1.2-preview:
   version "6.1.2-preview"