Merge pull request #7 from jrmontag/master

Text edits
updates
resolved conflicts
added pdf for download
Edits to first 1/3
V1 candidate, sans Ex1
added estimation of Optional Powertrack Sampling and other edits
Merge pull request #8 from blehman/master

Sampling PowerTrack Operator Example + other edits
Added code for fig generation and text edits
Edits and improved imgs
3 col table
Table and image edits.
Updated fig 2 with annotation
Tried the icon idea from kdub
Graphics in margin
Typos and some formatting changes