Merge pull request #137 from DavidVorick/gh-pages

Add sianotes.html
Formatting Consistency
add download page
add information on libsodium to download.html
Add download.html to Sianotes page
Merge pull request #168 from lukechampine/downloadpage

Downloadpage
update binary
Merge branch 'gh-pages' of github.com:NebulousLabs/Sia into downloadpage
clone release branch
Rename second sia asset to 'Siafund'
gh-pages .gitignore to ignore directories left behind while switching branches