Conflicts:
	expe_template.lua

Make sure that default learn_start is greater than the minibatch size

Conflicts:
	arcades/environment/smarthome/sweethome/GraphicalAnnotatedSweetHome.lua
	src/environment/states/datasource/init.lua

Building a too long string results in a memory error. Using a table to
concat afterward fix this.

Use a more explicit argument name (so called dump) and recurcively load
arguments if necessary.

This can be used by tools like t-SNE

Conflicts:
	arcades/environment/smarthome/sweethome/GraphicalAnnotatedSweetHome.lua
	expe_template.lua
	src/environment/states/datasource/init.lua