[ccp4bb] ccp4 7.0 update 041

[Charles Ballard]

Dear All

update 041 contains

* rdkit 2017_03_02

* acedrg 
 - update for new rdkit

* ccp4i2
 - update for new rdkit and acedrg

* ccp4mg
 - update for new rdkit

* coot
 - update for new rdkit

Next up dials 1.6.1

All the best

CCP4 core team