IBM LoadLeveler adaptor
remove cluster string
delete wrong directory .svn. and add tests/adaptors/loadl/loadl_test.py
add copied_files metric to copy tasks.

This commit also adjusts a number of things in saga.Task to allow for arbitrary metrics to be added.  Those changes need to be reflected in *all* @SYNC calls which are supposed to be used in async tasks -- they now get an additional parameter "_from_task", which, you guess it, contains the task object itself, so that metrics etc. can be registered and updated.
more work on copy with relative paths
Revert "implemented file / directory .close()"

This reverts commit 83b4470fc94a179cccfc2daf16042493dcf12132.

Revert the additional close() methods, as those are already available via the
namespace.entry class -- with a colliding method signature

Please open tickets if close() still fails on any package/adaptor which
inherits from namespace.
yeah baby!
inconsequential commit
log version info
more setup and version cleanup
doc -> docs
Merge branch 'master' into devel
Merge remote-tracking branch 'remotes/origin/feature/loadleveler' into devel

Conflicts:
	saga/utils/contrib/urlparse25.py
fixed changelog
added loadleveler example
remove superfluous version log
Merge branch 'devel' of github.com:saga-project/saga-python into devel
fixed non-ASCII char issue
better error message
make LoadLeveler adaptor install and load