Version 1.0b

This is a major release for the `ui-layout` module that adds the ability to:
- Define layout configuration from the scope
- Toggle containers open / closed
- Various other small fixes

**New Requirements**:
This release introduces a new component, `ui-layout-container`, that is required on all children inside a `ui-layout` element.
```
<div ui-layout>
    <div ui-layout-container></div>    
    <div ui-layout-container></div>    
</div>
```



Resolves #4, Resolves #11, Fixes #21, Resolves #29, Resolves #30, Closes #32, Resolves #38, Resolves #41, Fixes #48, Fixes #49 
@jbroquist following @llafuente comments https://github.com/angular-ui/ui-layout/pull/45#issuecomment-61612568 I think that you should link to the correct source files here in `src/`. We will deal with the dist path in the `publish.js` file.