Fixed manual for AROUND
Removed getNumberOfTerms from Vessel.

This routine no longer made sense in the code
Simplification of storage of data in multicolvar

For a number of complex multicolvars eg. Local_q4 it is useful
to store the quantities calculated in one multicolvar and to use them later.
I had written functionality for this in a somewhat ad hoc manner intially and
as such there was much duplication of code and non uniformity in implications.
This resolves these issues.  Data is now stored more consistently and it is possible
to use a low memory version of this functionality at all times.
Tidy up to incorporate adjancency in crystallization
Added facility to specify a subset of central atoms for multicolvar functions
Removed colvar_atoms arrays

This modification ensures that multicolvar uses less memory and makes
it a tiny bit faster
Allow to configure with name of configuration file

One can know use e.g.
./configure mpi.linux.icc
to directly select the configuration and avoid interactive
choice. Better for building from script
Small change in regtest

It is possible to print html links to failed tests.
I am setting a nightly build and want to publish online
regtests results
Merge branch 'v2.0'
Implemented OFile::rewind
Modified behavior of grid file in METAD

When not RESTARTing:
file is backed up if existing.
  with STORE_GRIDS, file grows during simulation
  without STORE_GRIDS, file is replaced every time grid is rewritten

When RESTARTing:
  with STORE_GRIDS, file is appended and grows during simulation
  without STORE_GRIDS, file is replaced every time grid is rewritten

This hopefully fixes #34
Regtest for WRITE_GRID
Small cleanup in Communicator::wait
Regtest for Send(string)
Added flush and some comment

Without STORE_GRIDS it is necessary to flush the grid file,
otherwise it might stay empty for the entire simulation
Merge branch 'v2.0'
Optimized WHOLEMOLECULES

I added the possibility to avoid copy of atom coordinates for specific
Actions. Since WHOLEMOLECULES is accessing to atoms in a special manner,
it is now faster.
Only share mass and charge at first step
Merge branch 'master' into walkers-mpi