High-level overview of spadaccio's talk.
Merge pull request #3 from lupino3/master

looks ok.
Small changes and refinements
Merge pull request #4 from etr/master

How to build SOLID code
Introduce Scala and FP talk draft
Add slide on implicit conversions, update agenda
Improved graphics
Improve FP slides, add hashtag, draft remaining slides
Add more slides, almost finished