…ct root

Summary:
@wez Mentioned this in Issue facebook#239 -- right now when watchman takes too long we recommend you run `watchman` from your terminal which actually expects some arguments, so it prints out the following:

```
[pcottle:~/Desktop/react-native:changeErrorMessage]$ watchman
{
    "error": "invalid command (expected an array with some elements!)",
    "cli_validated": true,
    "version": "3.0.0"
}
```

basically this ends up being more confusing since the command we recommend you run errors out, so lets change it to `watchman version` which at least exists cleanly.

I kept the troubleshooting link as https://facebook.github.io/watchman/docs/troubleshooting.html since it sounds like we will update that with the issue people run into in facebook#239
Closes facebook#825
Github Author: Peter Cottle <pcottle@fb.com>

Test Plan: Imported from GitHub, without a `Test Plan:` line.

Summary:
cc @amasad

An error occurred while trying to display the Red Box since loadSourceMap was not included in the JS
bundle. This is because node-haste was treating its docblock as a multiline directive which doesn't make sense for `@providesModule`.

In loadSourceMap.js's case, the directive's value was parsed as "loadSourceMap -- disabled flow due to mysterious validation errors --".

There are two fixes: add a newline under the `@providesModule` directive, and change the module ID code to look at only the first token of the directive. I opted for the latter so we avoid this class of bugs entirely and AFAIK it's nonsensical to have multiple `@providesModule` values anyway.

Closes facebook#866
Github Author: James Ide <ide@jameside.com>

Test Plan:  Run the packager, trigger an error in an app, see the red box now show up again.

…creen width

…alloc

…t fire

… rendering to hardware textures on Android

…deallocation

Summary:
Enables overwriting of underlying colors for WebViews. Especially useful if you want to give your WebView a transparent background.
Closes facebook#767
Github Author: Lochlan Wansbrough <lochie@live.com>

Test Plan: Imported from GitHub, without a `Test Plan:` line.

…yers during adsmanager Navigator navigation

…acktrace-parser

… it is properly set

Summary:
`value` is clamped between min/max and so order of prop application matters - `value` always ended up being set first in my tests, and consequently a value outside of the default range 0-1 would not work. So this applies the value when the min/max are set.

[Gist of broken example](https://gist.github.com/brentvatne/fc637b3e21d012966f3a)

![screenshot](http://url.brentvatne.ca/SQPC.png)
^ the second slider here should have it's cursor in the middle

/cc @tadeuzagallo
Closes facebook#835
Github Author: Brent Vatne <brent.vatne@madriska.com>

Test Plan: Imported from GitHub, without a `Test Plan:` line.

…xtual docs

Summary:
The curly braces seems to be redundant.
Closes facebook#811
Github Author: xcatliu <xcatliu@gmail.com>

Test Plan: Imported from GitHub, without a `Test Plan:` line.

Summary:
* This PR fixes a typo for the NetInfo docs page
Closes facebook#937
Github Author: Mike Wilcox <mwilcox56@gmail.com>

Test Plan: Imported from GitHub, without a `Test Plan:` line.

Summary:
Used facebook#382 as inspiration
but modified to return null instead of undefined as per the spec at
https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequest

This unblocks use of Dropbox.js within a react-native app, as well
as any other libraries that make use of these methods in XHR usage.

Closes facebook#872
Closes facebook#892
Github Author: Josh Zana <joshzana@gmail.com>

Test Plan: Imported from GitHub, without a `Test Plan:` line.

Summary:
For a very simple view I was observing that the text background was black and had to manually be set to transparent. This ensures that text nodes have a transparent background by default.

Closes facebook#256
Github Author: James Ide <ide@jameside.com>

Test Plan:
 This example component no longer renders what looks like a black block, and instead displays legible text.

    var Example = React.createClass({
      render: function() {
          return (
            <View style={styles.container}>
              <Text>hello</Text>
            </View>
          );
      },
    });

    var styles = StyleSheet.create({
      container: {
        flex: 1,
      },
    };

…rplate

… on Android

…ll from XHR.getAllResponseHeaders if request has completed