Make a copy of lodash before modifying it.
Merge pull request #2476 from diversario/fix/2440-lodash-corruption

Make a copy of lodash before modifying it.
remove old docs
RTD migration
Merge pull request #4 from sequelize/1.7.0

1.7.0 - synchronise with  sequelize/sequelize
Merge pull request #5 from lebretr/1.7.0

1.7.0 - synchronise with  1.7.0