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- the library version number is changed due to change in ABI
- the INSTALL ascii file is updated
- a RELEASE_NOTES file is introduced

Now it is possible
- to choose the kernel (real and complex independently) at run-time
  via environment variables, or
- to specify the kernel (real and complex independently) at runtime
  via specifing the kernel in the call to ELPA

This has a few implications
1) The ELPA 2014.06 release has a change in the API and is thus not
   binary compatible with previous versions
2) if no kernels are specified, a default kernel is choosen
3) if a wrong kernel is specified, a default kernel is choosen

For sake of simplicity it is still possible to build ELPA with
support for only one kernel, as in previous versions. However, it is
still not binary compatible to previous versions

Configure checks whether the Fortran environment module
is available. If yes, the library is build such, that all
messages (from within the library) are printed at the correct
stderr unit. If not, then the stderr unit is set to unit=6

The configure.ac of ELPA_2013.11 is cleaned up a bit
Also, ELPA_2013.11 is copied to ELPA_2014.06 in order to have
the base for the next ELPA release