Added option to ci::Capture to set crossbar for suitable capture device on Windows

Simply extends Capture and CaptureImplDirectShow to allow the creation of Capture with a 'crossbar' option. This is useful for many analog / pci(e) capture devices which have svideo, composite, tuner and so on. 
You're right. I'll start again....

Best regards,

Chris

On Sun, Nov 30, 2014 at 10:11 PM, Richard Eakin <notifications@github.com>
wrote:

> In .gitignore:
>
> > \ No newline at end of file
> > +docs/doxygen/cinder.tag
> > +*.lib
>
> We definitally can't ignore *.lib's, there are many within cinder's lib
> folder that need to be updated from time to time. I don't think .gitignore
> should be modified here at all.
>
> —
> Reply to this email directly or view it on GitHub
> <https://github.com/cinder/Cinder/pull/615/files#r21063971>.
>