Final fixes

Author: Nick Hwang

README.md

@@ -6,6 +6,29 @@ It aims to be the canonical implementation of this type of positioning, such tha
 
 Take a look at the documentation for a more detailed explanation of why you should star it now to remember it for your next project.
 
+## Install
+
+__npm__
+```sh
+$ npm install tether
+```
+
+__bower__
+```sh
+$ bower install tether
+```
+
+## Usage
+
 [![Tether Docs](http://i.imgur.com/YCx8cLr.png)](http://github.hubspot.com/tether/#usage)
 
-### [Demo & Documentation](http://github.hubspot.com/tether/)
+[Demo & API Documentation](http://github.hubspot.com/tether/)
+
+
+## Contributing
+
+We encourage contributions of all kinds. If you would like to contribute in some way, please review our [guidelines for contributing](CONTRIBUTING.md).
+
+
+## License
+Copyright © 2015 HubSpot - [MIT License](LICENSE)

dist/js/tether.js

@@ -911,9 +911,10 @@ var TetherClass = (function () {
       var height = elementPos.height;
 
       if (width === 0 && height === 0 && typeof this.lastSize !== 'undefined') {
+        var _lastSize = this.lastSize;
+
         // We cache the height and width to make it possible to position elements that are
         // getting hidden.
-        var _lastSize = this.lastSize;
         width = _lastSize.width;
         height = _lastSize.height;
       } else {
@@ -1270,9 +1271,10 @@ TetherBase.modules.push({
     var width = _cache.width;
 
     if (width === 0 && height === 0 && typeof this.lastSize !== 'undefined') {
+      var _lastSize = this.lastSize;
+
       // Handle the item getting hidden as a result of our positioning without glitching
       // the classes in and out
-      var _lastSize = this.lastSize;
       width = _lastSize.width;
       height = _lastSize.height;
     }

gulpfile.js

@@ -2,7 +2,6 @@ var del         = require('del');
 var gulp        = require('gulp');
 var babel       = require('gulp-babel');
 var bump        = require('gulp-bump');
-var coffee      = require('gulp-coffee');
 var concat      = require('gulp-concat');
 var filter      = require('gulp-filter');
 var header      = require('gulp-header');

package.json

@@ -16,15 +16,14 @@
   "main": "dist/js/tether.js",
   "devDependencies": {
     "del": "^1.1.1",
-    "gulp": "^3.8.11",
-    "gulp-autoprefixer": "^2.3.0",
+    "gulp": "^3.9.0",
+    "gulp-autoprefixer": "^2.3.1",
     "gulp-babel": "^5.1.0",
     "gulp-bump": "^0.3.0",
-    "gulp-coffee": "^2.3.1",
     "gulp-concat": "^2.5.2",
     "gulp-filter": "^2.0.2",
     "gulp-header": "^1.2.2",
-    "gulp-minify-css": "^1.1.5",
+    "gulp-minify-css": "^1.1.6",
     "gulp-plumber": "^1.0.1",
     "gulp-rename": "^1.2.2",
     "gulp-sass": "^2.0.1",