Allow International Development Funds to be viewed

 * Add InternationalDevelopmentFund presenter
 * Add cucumber spec mirroring CMA cases.
 * Fix CMA case cucumber spec (was looking for nil)

Development/Test only:
 * Add launchy gem to allow save_and_open_page in test suite in future.
Merge pull request #34 from alphagov/view-international-development-fund

Allow International Development Funds to be viewed
Change how we refer to the international-development-funding schema
Add CSS for non <fig> wrapped images

As we need images for the DFID Finder, uploading attachments and
prepending a bang to the attachment code parses it as an image,
althought it's outside of a <fig> tag. This CSS means that it stays
within it's container and can resize.
Merge pull request #35 from alphagov/fix-international-development

Change how we refer to the international-development-funding schema
Merge pull request #36 from alphagov/add-css-for-govspeak-images

Add CSS for non <fig> wrapped images
Add remaining AAIB report metadata fields