Set shadowDepth to zero for Exceedance plots.
Remove download plot button from exceedance graphs. Commented out the
Aquality benchmark graphs and related code. Modified the text in the
Human-Health Benchmarks pop up as well as the graph title.
Use Sugar to properly format numbers with commas
Merge pull request #219 from isuftin/NAWQAAN-315

Time slider and date must start at 1993 for all relevant figures
Merge pull request #218 from isuftin/NAWQAAN-318

Use Sugar to properly format numbers with commas
Merge pull request #220 from isuftin/NAWQAAN-315

Having to shim CONFIG object
Changed labels to meet requirements

- mg/L -> in milligrams per liter

- kg*6^10 -> in thousands of tons

- Changed Y-axis labels to not be canvas since canvas doesn't allow for
a linebreak using \n or <br /> and the label changes make the entire
label too large to be on one line. Flot doesn't create a line break when
needed. Seemingly, the only way to get around this is to make the plots
taller to fit the text. I tried getting the text down to a font size 8
but then it's way too small to read 

**This could break functionality down the line if we need to export
canvas!!
Merge pull request #222 from mbucknell/NAWQAAN-304

Nawqaan 304
link and link ups
Merge pull request #221 from isuftin/NAWQAAN-317

Changed labels to meet requirements
Merge pull request #223 from mwernimont/help_page

link and link ups
Now properly dealing with negative numbers 

If negative percentages are found, they are not included in with the pie
chart
Merge pull request #226 from isuftin/NAWQAAN-312

Now properly dealing with negative numbers
Refactored TimeSeries object

- No longer a global configuration for 1993
- Moved cut-off functionality into a self-contained function with an
incoming param switch (default to true) whether or not to cut off date
to lower bound (1993 currently)