create separate md file for interactive materials
Added "The Neophyte's Guide to Scala"
Alphabetized Scala section
make sure to keep only the fully interactive tutorials
add the new -en md file with interactive tutorials removed
Fixed Scala alphabetizing
add cleaned up -interactive-tutorials-en
Added "Play Framework Recipes"
Merge pull request #584 from alexanderfefelov/master

Scala section: a few changes
Merge pull request #577 from Mouseion/patch-interactive

Create separate md file for interactive materials