techOrder should be an array of strings

- Correct the example where the value of techOrder is a hash when it should be an array.
- Make examples clearer that the elements of this array should be strings, not another array.
Fix #398
Use a new CSS class 'vjs-disabled' to disable display of the volume controls. This allows custom styles the flexibility to use methods other than `display:block` to layout the controls.
Update tests
Check for the presence of `vjs-disabled` instead of whether the display is set to none for volume and mute control tests.
added a note to advise users to stick with an earlier version of Node.js until the known issue with phantomjs is fixed.
fixes #477
Rename vjs-disabled to vjs-hidden
Disabled is a bit overloaded with visible but unusable controls, so use hidden instead. Re-arrange default styles a bit and use dom helper methods instead of the vjs-objection functions.
Added a note about the known issue between phantomjs and Node 0.10.x
Merge pull request #421 from BCjwhisenant/contrib-guide-node

Fix for #411 - change to CONTRIBUTING.md about phantomjs and Node 0.10.x
Do not remove poster attribute when creating the player
We use a div with a background image to simulate the poster image so that we can use a single poster implementation for flash and html. It may be desirable on some platforms to use the native poster image, however. On iPhones for instance, the simulated poster image covers up the native play button and can make it difficult to figure out where to touch to initiate playback. By keeping the poster attribute on the underlying video element, you can hide the simulated poster to get a native look-and-feel on that platform.
Added isReady = false on unloadTech. fixes #214, fixes #211
Merge pull request #265 from EricR/patch-1

techOrder should be an array of strings
Merge pull request #399 from dmlap/issue398

Fix #398
Use accessors to transfer the poster attribute
When transferring the poster attribute from the container to the tech in mediafaker, use the accessor methods instead of directly referencing the private properties.
Merge pull request #426 from dmlap/feature/poster-attribute

Do not remove poster attribute when creating the player