Merge pull request #10 from jread-usgs/master

fixed bad commit, allow empties in .lke to be NaNs (refactor)
Merge pull request #11 from jread-usgs/master

typo fixed, and *optional file display during run
Merge pull request #12 from jread-usgs/master

added new lakeanalyzerweb screenshot to manual
new function for layer temperature calc
v 3.3.2 added layer temperature
fixed missing layerA var