- Added support for the variable ABT_JOBS, number of jobs to run in parallel.

- Added support for the variable ABT_JOBS, number of jobs to run in parallel.
- Added support for the variable ABT_RUN_REGTEST, the command to run the regression tests.
- Added support for the variable ABT_CONFIGURE_OPTIONS, such that extra command line options
  can be passed to the configure script.
- Cross-compilation patch is applied after source code checkout and before the source code is
  compiled.

git-svn-id: svn://svn.valgrind.org/valgrind/trunk@8588