Merge branch 'master' of github.com:plumed/plumed2

CHANGES/Unreleased.txt

regtest/adjmat/rt-dfg2/plumed.dat

regtest/adjmat/rt-hbond/Makefile

regtest/adjmat/rt-hbond/colvar.reference

regtest/adjmat/rt-hbond/config

regtest/adjmat/rt-hbond/deriv.reference

regtest/adjmat/rt-hbond/plumed.dat

regtest/adjmat/rt-hbond/water-box.xyz

regtest/multicolvar/rt-cylinder/Makefile

regtest/multicolvar/rt-cylinder/colvar.reference

regtest/multicolvar/rt-cylinder/config

regtest/multicolvar/rt-cylinder/derivatives.reference

regtest/multicolvar/rt-cylinder/gentraj.cpp

regtest/multicolvar/rt-cylinder/plumed.dat

regtest/multicolvar/rt-cylinder/trajectory.xyz

src/adjmat/DFSBase.h

src/adjmat/DFSOutput.cpp

src/adjmat/DFSSurfaceAtoms.cpp

src/adjmat/HbondMatrix.cpp

src/analysis/Commit.cpp