Merge pull request #1 from kaitlinhuben/chris-rec10

Typo fixes and a few additions to recitation 10
ignoring .DS_Store
Converter for numeric conversion: better output formatting.
Tightened formatting. Better basicpointer.
Print out memory address
Fixed a command typo in the file I/O section

Before, we had:
    [10] $ valgrind ./myprogram 2>&1 > ALLthethings 
    [11] $ valgrind ./anotherprogram 2>&1 >> ALLthethings 
That doesn't actually work. Updated to:
    [10] $ valgrind ./myprogram > ALLthethings 2>&1 
    [11] $ valgrind ./anotherprogram >> ALLthethings 2>&1
Merge pull request #41 from kaitlinhuben/master

Fixed a command typo in the file I/O section
Added mdbrec to review
Update recitation-11, there was a half sentence there.
Added main that forks a child and a grandchild, added Makefile for main.
Added program2, which simply prints a statement, and its Makefile.
Added readme for explanation of example.
Adding a reading list I started to assemble a while ago
A few additions to the reading list