replaced deprecated AUTOPROJ_PROJECT_BASE with AUTOPROJ_CURRENT_ROOT
Merge pull request #1 from planthaber/master

replaced deprecated AUTOPROJ_PROJECT_BASE with AUTOPROJ_CURRENT_ROOT
create a shell helper file that is bourne-compatible

The others are left there for backward compatibility. Otherwise,
people would load their env.sh and get an error.
Merge pull request #4 from rock-core/make_shell_helpers_bourne_compatible

create a shell helper file that is bourne-compatible
Merge remote-tracking branch 'autobuild/master' into orogen_loaders