Fixed printing issues within monopoly.py

[rehamansoor]

In the function refresh_h_and_s(), the program was not clearing the status section properly. The change was minor, but was able to fix the problem that was occurring with view artifact. When debugging the 4th part, I ran the program many times but was not able to replicate the error. That part seemed to be running properly.

[adamgulde]

This looks like the correct approach but the "3. Viewing deed text artifacts (3)" isn't fully fixed. Consider this unittest (which I think should be in the most current code, no one's been adding many unittests)
def unittest():
players[1].buy(1)
players[1].buy(3)
players[2].buy(5)
players[2].buy(15)
players[2].buy(25)
players[2].buy(35)
players[3].buy(12)
players[3].buy(28)

If, for example, I view deed # 3 (baltic avenue), then press p to manage properties for player 3 (for example), there will be still artifacts from viewing the deed. Please test your code further.

Also arguably more importantly, please see the updates I made to contributing.md (specifically steps 3-6). Your branch is far behind the main repo, so following those steps when you're ready to contribute will make the review process much faster.