Un-comment method arguments in PISMComponent.hh
Revert "Added new interface to attach_atmosphere()..."

This reverts commit 2f9c09abbad3e4a29bd61316c858de3311d3b7e4.

As of now, CMake has no way of detecting whether a compiler supports
C++11 features. See <http://public.kitware.com/Bug/view.php?id=13842>.

The reverted change impacts PISM's portability without resolving any
existing issues. (It does prevent some possible issues in the future,
though.)

Moreover: this breaks PISM's Python bindings. (I am using SWIG 2.0.10,
but the current version, 2.0.11, only adds some bug-fixes.)

The reverted change is now moved to a separate branch, where it will
stay unless it is decided to merge it into "dev" at a later time.