Typos

Fixed typo resulting in duplicated manual for SPRINT
Added a reference to SPRINT in the "moving from plumed 1" guide
gromacs: stop the code if plumed ask so
stop flag in simpleMD (usefull for committor regtesting)
Committor analysis
is not very flexible but is consistent with plumed1
committor, close #10
CS2Backbone: more checks for wrong input files
GRID: More detailed error messages in getIndex
I removed an assert and added an if then plumed_merror

close #39
GRID: More detailed error messages in getIndex
I removed an assert and added an if then plumed_merror

close #39
Merge branch 'v2.0'
PATHMSD: I have removed PROPERTY=X,Y from the example, I think that PATHMSD
doesn't have this keyword
PATHMSD: I have removed PROPERTY=X,Y from the example, I think that PATHMSD
doesn't have this keyword

(cherry picked from commit 57c32f902eb06f70cb91d5e1a6c490a5d6f5a8dd)
typo
Merge branch 'v2.0'
Fixes #49

Check for NULL pointers is postponed to class Atoms and is done only if
there are local atoms. This fixes the case where GROMACS put zero atoms in
 a processor and assign a NULL pointer to positions
Fix

The fix to #39 was incorrect since adding an int to a string
does not print it.

I also removed the redundant check that index is positive (it is unsigned)
Merge branch 'v2.0'
PlumedMain.cpp: commented line 186 -> this need to be fixed
when a domain of domain decomposition is empty.
Added test on gatindex pointer in class Atoms
Merge branch 'fix-49' into v2.0
Merge branch 'v2.0'