moved isValid to helpers.inConstraint
fixed typo
fixed some typos in the theory
Added plotting capability with Flot
more reasonable error levels.
rearranged equations for readability
removed an out of date comment
when theta=0 choose phi=0 for consistancy
adjust whitespace
fixed some problems with AG.histogram() equations
removed flot() use getData() instead

getData() returns the data as x and y values that can be delivered
directly into the add_series() method of a flot plot object.  So flot
only needs to be required in main.
ignore *.html