Mastery quests, dumb stats quests, minor tweaks

[IanPlu]

• Updated the mastery quests to have better / actual objectives. I am afraid of the Spectrum one.
• Added a silly section that has quests for dying a lot, walking around, not dying, etc.
• Test drove the quests and fixed up little things here and there. Everything should be accessible (except for Spectrum, but that can be updated later)
• Added a meta-mastery quest. You get a certificate if you complete all the mastery quests.