Merge pull request #3 from Virtlink/master

Fixed the folder and file names for src-gen and two links
Change Day3 with new SDF3 stuff
Tell the students to delete the minijava-jar.jar file and .sdf3 files that are in the src-gen folder.
Tell the students to delete the minijava-jar.jar file and .sdf3 files that are in the src-gen folder.
rewriting stuff in lab3
update Day 4
Update day4.md
Added FAQ on the desugar rule failing in the MiniJava editor
Merge pull request #4 from thegeman/desugar-question

1 bonus point.
Update for day 5 lab.
Update day5.md
Update day5.md
Update day5.md

Change start symbol to Program, which is the start symbol being used this year.
Update day5.md

Clarify that referencing the main class is also not allowed.
Update day5.md
Clarified hiding in the objectives
Update day4.md

Uop -> UnOp, Bop -> BinOp
Update assignment 6 for this year's situation.
Update day6.md

Remove redundant explanation of new initial project.
Update day6.md

Clarify initial project contents.