Mostly Fixes#893
A couple methods cache callbacks, and will require a larger refactor to fully denodeify.
Specifically, our methods involving web3 requests to sign a tx, sign a message, and approve or cancel either of those.
I think we should postpone those until the TxManager refactor, since it will likely handle this response caching itself.
Added new Qunit build process that will browserify the contents of `test/integration/lib` into the QUnit browser, allowing much more modular testing, including unit testing of our modules in our target browsers.
Made a basic unit test file of this form for the new encryptor module, which fails miserably because I've only just begun to work with it.
I've started with this blog post as a starting point, and will be adjusting it to our needs from there:
http://qnimate.com/passphrase-based-encryption-using-web-cryptography-api/
I always keep writing up this same announcement message whenever I publish a new version.
I've now written a script to automate my announcement formatting, it looks like this:
```
**MetaMask 2.13.2** now published to the Chrome Store! It should be available over the next hour!
2016-10-4
- Fix bug where chosen FIAT exchange rate does no persist when switching networks
- Fix additional parameters that made MetaMask sometimes receive errors from Parity.
- Fix bug where invalid transactions would still open the MetaMask popup.
```
The new lightweight svg logo was not following text quite right.
The new `lookAt` method was not using the same logic the module was using internally on mouse movement.
I simply used that logic and exposed it via the old (expected) API, and got it behaving the way I like.
Fixed logo deallocation related bugs, had to patch the logo repo itself to add a stopAnimating method.
Also tuned up the logo to more closely resemble the old behavior.
- Overlaps the title text
- Points nose at cursor, not just front of eyes
- Cursor is more "distant" from fox, to avoid extreme angles on edges.
- No longer need to check for webGL compliance (svg rendered!)
- logo.canvas has been replaced with logo.container, since svg doesn't render to canvas but to an element.
Otherwise, worked with very little effort!!
Fixes#624
