Precalc fixes

Precalculus bugfixes from https://docs.google.com/spreadsheet/ccc?key=0Av8IayOVUCSXdE9wLUR3WWZyV2F3Q3JyZ0NESUFjZnc&usp=drive_web#gid=0


Books Tested:

- [x] physics (This works. the bullets in this book are **no longer valid**)
  - license shows up under preface/chapter
  - section numbering in preface
  - page title missing
  - extra period after figures
  - extra space in chapter titles
  - section titles have period and are not blue
  - 8 additional pages
  - example solutions have "([Solution] Return to )"
  - footnotes in table do not move to bottom of page
  - Introduction section shows up in "Section Summary"
  - more extra periods in end-of-chapter sections
  - end-of-chapter exercise numbers have green background
  - end-of-chapter sections with no exercises still show up
  - Appendix letter is missing in table numbering
- [x] sociology
- [x] psychology
  - ToC says "Chapter Outline" instead of ToC
  - (stopped checking)
- [x] precalculus
  - book title is left instead of center (not a problem, just an observation)
  - ToC says "Chapter Outline" instead of ToC
  - QA padding is correct
  - end-of-chapter Exercises do not say "1.7 | Section Exercises" (maybe this is correct?)
- [ ] economics
  - colors mismatch
  - ToC says "Chapter Outline"
  - Answer key answers are on a new line
  - Answer key chapters have a blue period after the chapter number
  - Attributions do not have the blue background
- [x] anatomy
- [x] biology
- [x] statistics
  - missing page titles
  - contains license text after preface
  - preface section numbering
  - section/figure/table numbers all contain trailing period (same as physics)