Spelling fixes

[jsoref]

Yes, one or two of these changes may be to third party libraries, please feel free to submit those changes to them....

Using consistent and expected spelling in code, comments and documentation especially for Samples such as this helps everyone.

[girliemac]

Thanks Josh,
I have changed a bunch of files at the same time you made the pull request, so to avoid fixing a bunch of conflicts, I am fixing the spelling errors manually!
And I do need your keen eyes when the app is finishing too.

[jsoref]

Any decent DVCS should be able to handle this, since each spelling fix is a single commit, basically you just let the rebase drop each conflicting commit and then for the conflicts you look at what they were trying to do.

OTOH, because of the way the commits are structured, applying the changes manually may be just as easy, which is fine w/ me. I don't mind.

And when the application is ready, just ping me, I'm happy to give it a spin.