Update jasmine-support.js

fix typo in multiple error messages.
TodoMVC Flux Example
added dx and dy for laying out text with relative offsets
add `ReactComponentWithPureRenderMixin` to addons
Support `ms` vendor prefix when generating markup
Add scrolling attribute for <iframe>
Merge branch 'master' of github.com:facebook/react
[Docs][Tips] Entry on this.props.children and tweak component ref entry

Component ref entry wasn't registered in nav_tips.
Merge pull request #1308 from chenglou/pure

add `ReactComponentWithPureRenderMixin` to addons
Remove toJSON

This was temporarily needed since clone on mount introduced a cyclic reference
in __DEV__. This reverts that change since we now have descriptors.

To avoid a problem where toJSON may collide.
Add callback to setProps docs
Add acknowledgement to Christopher Aue
Merge pull request #1313 from spicyj/ms-prefix

Support `ms` vendor prefix when generating markup
Merge pull request #1338 from chenglou/tip-children

[Docs][Tips] Entry on this.props.children and tweak component ref entry
Merge pull request #1325 from venmo/add-scrolling-attribute

Add scrolling attribute for <iframe>
Merge pull request #1306 from twobit/master

Add dx and dy attributes for SVG text
Merge pull request #1258 from fisherwebdev/master

TodoMVC Flux Example
Merge pull request #1251 from davidxi/patch-1

Update jasmine-support.js
Handle className correctly for SVG nodes

Bring back the DOM mutator to check if the className we're writing
to is actually a string.

For SVG nodes, the className property is not of type string but
and SVGAnimatedString and writing to the property will cause
a "TypeError: setting a property that has only a getter"
(See http://jsfiddle.net/ca47V/ )

This first checks if the className property is indeed a string
and uses setAttribute() / removeAttribute() otherwise.