Rename Vool to Sol

Simple is really the descriptive name for the layer
Sure, it is "virtual" but that is not as important as the fact that it is simple (or simplified)
Also objct (based really) is better, since orientated implies it is a little like that, but only orientated, not really it. Sol only has objects, nothing else
Just cause i was renaming anyway

test/support/compiling.rb

@@ -4,7 +4,7 @@ module ScopeHelper
 
   def compiler_with_main(options = {})
     compiler = RubyX::RubyXCompiler.new(RubyX.default_test_options.merge(options))
-    compiler.ruby_to_vool( "class Space;def main(arg);return;end;end" )
+    compiler.ruby_to_sol( "class Space;def main(arg);return;end;end" )
     compiler
   end
   def in_Test(statements)
@@ -28,7 +28,7 @@ module ScopeHelper
   end
 
 end
-module VoolCompile
+module SolCompile
   include ScopeHelper
   include SlotMachine
   include Preloader

test/support/preloader.rb

@@ -2,11 +2,11 @@ module Preloader
   def get_preload(preload)
     return "" unless preload
     if( preload == "all" )
-      loading = Vool::Builtin.builtin.keys
+      loading = Sol::Builtin.builtin.keys
     else
       loading = preload.split(";")
     end
-    loading.collect { |loads| Vool::Builtin.load_builtin(loads)}.join(";") + ";"
+    loading.collect { |loads| Sol::Builtin.load_builtin(loads)}.join(";") + ";"
   end
   def preload
     get_preload(@preload)