Merge pull request #61 from birdage/init_theme_2

inital commit of theme 2 notebooks
initial commit of theme 3 notebooks
Theme 2 water level extremes

Cleaning up a bit...
Merge pull request #65 from Bobfrat/water_level_extremes

Theme 2 water level extremes
Theme2 extreme water levels

-Changed bounding box to get Nantucket data
-Changed datum to MHHW
-Changed units to metric
Merge pull request #67 from Bobfrat/water_level_extremes

Theme2 extreme water levels
Theme2 water level extremes

-update to the last commit with better histogram bins and map zoom
Merge pull request #68 from Bobfrat/water_level_extremes

Theme2 water level extremes
update wave notebook
added wis wave stations