replaced double-quoted uu with single-quoted uu; just u on its own gets misinterpreted because of a hack in runestone paver
Add pset5 solutions
Merge pull request #47 from aerenchyma/pset5sol

Add pset5 solutions
fixed naming of a couple actex directives to avoid duplication
wider text area, for wider code samples
Added solutions for problem 1 & 2
added problem 3 solution
added problem 3 solution
added problem 4 solution
added solutions for 4 and 5
added solution for problem 6
added solution for problem 7
added problem 8 solution
Merge pull request #48 from nickdotreid/pip

Problem set 6 solutions
bug fix
PS4 solutions
added Installation chapter, first draft
working on mac instrs, completed more-concepts above
fixed my own week7.rst conflicts
Merge branch 'pip' of https://github.com/aerenchyma/runestone into pip