These files were related to the original implementation of RMSD.
I think they have not been used for years, so I remove them.

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This is done only in the cmd interpreter

This should make the code slightly fast.

Notice that even though we assume c++11 to be available
in PLUMED 2.4 I here protected the definitions so that
they are only available with a c++11-supporting compilers
(see comments in the code).

This should not be necessary in other parts of the code,
since autoconf is already checking that c++11 is supported.

This requires a few fixes:
- Replace -ansi with -std=c++11 in autoconf.
- Add a check that c++11 is supported in autoconf.
- Change flags for cppcheck.
- Remove travis configurations that would fail.

Additionally, I removed the check for 'explicit' keyword,
which is not needed with C++11.

Fixes #212

This is a nasty workaround. Since FIT_TO_TEMPLATE needs to
access forces stored in Atoms, it is necessary that they are kept up
to date. With this fix, there is an extra function
allowToAccessGlobalForces()
that switch off an optimization that would otherwise make the
forces wrong when running in parallel

Set pointer to NULL with plumed_finalize() (to avoid subsequent usage)

addresses #213

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addresses #213

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