Bug 1077100 - pad the download links

Padding the link reserves space for the button graphic and avoids text overlapping.
Merge pull request #30 from craigcook/master

Bug 1077100 - pad the download links
Bug 1077100 - CSS tweaks for better text wrapping

Unset fixed height and position image at top
Fix bug 1077100: Add button for 64bit Windows build.
Merge pull request #29 from pmclanahan/add-win-64-1077100

Fix bug 1077100: Add button for 64bit Windows build.
Add info for deployment
Add example bug to README