Second stage for upgrading "Share" dialog (after #162).

Current look with a markup:

1. Convert social icons to clickable text string (see Fortepan example)
2. Add "Share via Email" option
3. Convert "link to this page" and "link to image" sections into clickable buttons (or add these buttons at right)
4. Close button is unneeded, IMHO, and may be removed
5. Add QR-code
6. Add HTML code for site/blog

See Yandex share dialog:

Fortepan share dialog