Edit C-level to remove questions that are now online
Add table for Lab I in a couple of formats
Move Lab 2 C-level online
Move lab 3 C-level
Add current schedule of topics
Add .gitignore
Change subheadings to level 2 from level 3

All of the other labs follow this.
Remove C-level details for remaining labs
Add Makefile and supporting files
Add holding file with pre-labs to be entered in Sapling
Merge branch 'prune-c-level'