Fix package.json inconsistent issues. (#38)

Author: yaohaizh

README.md

@@ -1,4 +1,4 @@
-# Java Project Viewer
+# Java Project Explorer
 
 [![Travis CI](https://travis-ci.org/Microsoft/vscode-java-explorer.svg?branch=master)](https://travis-ci.org/Microsoft/vscode-java-explorer)
 

package.json

@@ -1,6 +1,6 @@
 {
   "name": "vscode-java-explorer",
-  "displayName": "Java Project Manager",
+  "displayName": "Java Project Explorer",
   "description": "Manage Java Projects in VSCode",
   "version": "0.3.0",
   "publisher": "vscjava",
@@ -23,7 +23,8 @@
   "activationEvents": [
     "onLanguage:java",
     "workspaceContains:pom.xml",
-    "workspaceContains:build.gradle"
+    "workspaceContains:build.gradle",
+    "onCommand:java.project.create"
   ],
   "main": "./out/src/extension",
   "contributes": {