Add prepublish script and change main

Building TS before publish and pointing the main entry to the builded files.

.npmignore

@@ -0,0 +1,14 @@
+node_modules/
+*.swp
+.lock-wscript
+
+Makefile.gyp
+*.Makefile
+*.target.gyp.mk
+*.node
+example/*.log
+docs/
+npm-debug.log
+/.idea/
+.env
+build/

package.json

@@ -6,7 +6,7 @@
     "test",
     ".gitignore"
   ],
-  "main": "dist/xterm.js",
+  "main": "out/xterm.js",
   "repository": "https://github.com/sourcelair/xterm.js",
   "license": "MIT",
   "devDependencies": {
@@ -32,6 +32,7 @@
     "start": "nodemon --watch src --watch addons --watch demo --exec bash -c './bin/build && node demo/app'",
     "test": "./bin/build && mocha --recursive ./out",
     "build:docs": "jsdoc -c jsdoc.json",
-    "build": "./bin/build"
+    "build": "./bin/build",
+    "prepublish": "tsc"
   }
 }