updated the output path in order to avoid some warning.
updated the .rb files for building WP8 and WP7 in order to avoid the delition of the template folder and possible loose of one of the templates while building one of the runtimes. For instance building WP8 would clean the profiles/runtimes/winphone folder before copying the new template making the WP7 projects unbuildable from the IDE.
added a new precompile define.
updated the winphone-builder/main.cpp file. Now it sets a C building flag for all the .c files that are added to the WP8 project.
updated DebugPrintf.h in order to avoid compilation error inside WP8Libs.sln, this does not affect other runtimes/libraries except from WP8