Conflicts:
	src/core/Action.cpp
	src/core/ActionSetup.cpp

They were giving warnings with cppcheck

repeated assignment

initialization list

check for empty container

New bias allowing to introduce fictitious CVs so as to allow indirect
metadynamics (Iannuzzi et al) and TAMD/dAFED

Allow individual action to set restart, using RESTART=YES or
RESTART=NO. By default, RESTART=AUTO, that means that global
restart settings are used.

Notice that this required to change the way OFile knows about
restart. Indeed, if the file is linked to an action,
it should use Action::getRestart instead of PlumedMain::getRestart.

[almost]

[almost]

In commit f4ac1cf2 I forgot to also change plumed.dat.0 file.
I fix this now, so as to decrease mismatches in regtests

[makedoc]