Merge pull request #103 from rolkar/bug-102-sd-quattro-h-faulty-botto…

…m-black-area

Bug 102 sd quattro h faulty bottom black area

Merge pull request #94 from erikrk/bug/89/sdq-afpixels

Interpolate over autofocus pixels for sd Quattro. Fixes #89

Merge pull request #82 from rolkar/add-sdq

Add support for sd Quattro

Merge pull request #72 from rolkar/prepare-0.54

Update changes.txt for release 0.54

Merge pull request #5 from rolkar/feature/doc

Feature/doc