Renames sandbox.RunTimeContext to sandbox.Prodile
Adds sandbox's documentation
Lets sandbox.Sandbox.process() function wait for the end of the sub process
Lets sandbox.Sandbox.process execute the command completly in the sandbox's root
Implements sandbox.Sandbox.{to_main_basis,to_sandbox_basis}
Replaces fetch functions by clone functions in sandbox.Sandbox
Moves sandbox.Sandbox's private methodes to end
Lets sandbox.Sandbox._ensure_directory() to use sandbox.Sandbox.to_main_basis()
Fixes a bug in sandbox.Sandbox.mktemp()
Fixes a bug in sandbox.Sandbox,process(): do not call self.clone_bin_dependencies() anymore
Lets compilation.Compilation use the sandbox for running
Merge branch 'sandbox' into dev