@gtribello I have to revert this since it fails on travis.
Can you please fix it and add it again on v2.4 (then merge, as you did)?

Thanks!

This reverts commit ce4bbf4e.

Check that METAD + TARGET + GRID_SPARSE works correctly.

Solves a bug with METAD + TARGET + GRID_SPARSE
See also #467

I verified it, I will then modified a regtest so to keep checking for this

(backported from v2.5)

no actual change

See #435

[makedoc]

(cherry picked from commit 781e5677)

Can be found with the following python snippet

import re
plumedDictionary={}
with open("/opt/local/lib/plumed/vim/syntax/plumed.vim") as fin:
    for line in fin:
        if re.match("^let b:plumedDictionary\[.*$",line):
            line=re.sub("^let b:","",line)
            exec(line,{'__builtins__': None},{'plumedDictionary':plumedDictionary})
for key in plumedDictionary.keys():
    diction={}
    for opt in plumedDictionary[key]:
        if(opt['word'] in diction):
            print(key,opt['word'])
        diction[opt['word']]=1