Add seminar 08 methylation.
Merge branch 'master' of https://github.com/jennybc/stat540_2014

# By jennybc (16) and others
# Via Jennifer (Jenny) Bryan (1) and jennybc (1)
* 'master' of https://github.com/jennybc/stat540_2014: (26 commits)
  Fixing some whitespace and line break issues in HW1 submission instructions; add link to instructions re: private repo creation and adding us as collaborators
  Add homework 1 submission instructions. Change 10e-4 to 1e-3 (no meaningful change, just optics).
  Links! To second RNA-Seq lecture slides, to RNA-Seq seminar material
  Seminar 7: Add the BAM data
  Seminar 7: Update the file paths of the BAM data
  Seminar 7: Update the header of the BAM material
  Seminar 7: Add optional BAM material
  OCD stuff in seminar07_RNA-seq.html
  Adding links in obvious places to the homework 1 assignment
  Enter last HW01 coaching instalment here, instead of on Google Group
  Adding some reshape2 stuff to seminar 5 on low volume linear modelling
  Adding some ggplot2 and plyr stuff to seminar 5 on low volume linear modelling
  Adding some ggplot2 and (earlier) plyr stuff to seminar 4 on data aggregation
  Add heatmap code to ggplot2 version of seminar 3 (general intro to graphics)
  Link to lect12_RNA-seq-1.pdf
  Seminar 7: Remove trailing white space
  Seminar 7: Add the data
  Seminar 7: Update the file paths
  Add seminar 7: RNA-seq
  Mention lattice::bwplot and ggplot2::geom_boxplot
  ...