Added an Android and a Desktop sample project:

 - testing Microsoft's assemblies (desktop)
 - testing Xamarin's assemblies (android)
 - testing My assemblies (windows phone)

Need to add correct signing now
Fixed the builds for Release as well as for Debug:

 - added the pre-processor conditionals
 - changed the output paths to build to a accessible file structure in the solution root
 - created a bat file that builds the projects in the solution