Fixed till Jungle

Removed a <pick> command in qtilljungle that was causing problems.
Renamed Terraforming

Renamed untill actions to terraform actions, because they were causing
issues using the untill command. If you untilled a jungle tile for
example, it would replace it with grass instead of jungle.
Initial construction stockpile test

Created a stockpile and types for some construction materials. Having
problem with large amounts of white space in the stockpile however.