#5 Gridworld name clash

[Loïs Vanhée]

Hello,

If someone try to create an environment using the Harry and Sally example, then he/she will probably use gridworld.Env. This package is already defined in 2APL. Consequently, when loading the modification of harry and sally, the user will be confronted to a name clash : there is a class gridworld.Env defined in 2APL and a class gridworld.Env defined in the external environment. Java selects the one of 2APL, leading to using the 2APL gridworld environment instead of the one possibly modified provided in the environment. A quick fix consists in removing gridworld from 2APL (which is an external environment and should not be there anyway).