Merge remote-tracking branch 'origin/master'

.travis/push

CHANGES/v2.5.md

regtest/basic/rt-molinfo/Makefile

regtest/basic/rt-molinfo/config

regtest/basic/rt-molinfo/h.gro.reference

regtest/basic/rt-molinfo/ions.gro.reference

regtest/basic/rt-molinfo/nh.gro.reference

regtest/basic/rt-molinfo/nucleic.gro.reference

regtest/basic/rt-molinfo/oneox.gro.reference

regtest/basic/rt-molinfo/plumed.dat

regtest/basic/rt-molinfo/test.gro

regtest/basic/rt-molinfo/test.pdb

regtest/basic/rt-molinfo/water.gro.reference

regtest/basic/rt63/plumed.dat

regtest/basic/rt63/protein.xyz.reference

regtest/basic/rt65/nucleic.xyz.reference

regtest/basic/rt65/plumed.dat

regtest/basic/rt7/all.xyz.reference

regtest/basic/rt7/physical.xyz.reference

regtest/basic/rt7/plumed.dat