Made all vm builds go into subdirectories, even product builds to simplify building the various types of VMs (server, client and graal). Made HotSpot build jobs use the number of CPUs on the host machine.

set HotSpotMksHome=C:\cygwin\bin& set JAVA_HOME=%cd%\jdk1.7.0& set path=%JAVA_HOME%\bin;%path%;%HotSpotMksHome%& cd make\windows& call create.bat %cd%