Delete Radegast.Plugin.SimpleBuilder.csproj

use prebuilt to generate the csproj file
Merge branch 'master' of https://github.com/ole1986/radegast
Merge branch 'master' of https://github.com/radegastdev/radegast
ole1986: hook/unhook the "Is Running" and "Is Mono" properly when opening scripts from an object
Merge branch 'master' of https://github.com/ole1986/radegast