global variables removed and test added in ABC_sequential because parallel mode isn't implemented for emulation



git-svn-id: svn://svn.r-forge.r-project.org/svnroot/easyabc@398 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
global variables removed


git-svn-id: svn://svn.r-forge.r-project.org/svnroot/easyabc@399 edb9625f-4e0d-4859-8d74-9fd3b1da38cb