[Download page] Add checksum link
Inlining checksums along side the download links

The checksum file has an extension of .checksum, which is very inconvenient to open in a GUI editor. Also, since it is a java properties file, it is not very user friendly. Many sites provide the checksums along side the downloads and being the general pattern, I thought we could move to that. The 'Checksum' header links to the downloadable file.
Merge commit '2fdf1d2' into inlining_md5
Removing Verify link from the bottom of the downloads page
Merge pull request #17 from sachinsudheendra/inlining_md5

Inlining checksums along side the download links