Fixes #134: Use units on compare/detail pages

Sets numbers to display as integers
Adds Energy Star to MOSCSSValues
DRY: display descriptions using MOSCSSValues
Use one-time binding for detail values

Keep cssVal undefined for energy_star key in MOSCSSValues
so that it is not added to the filters generated by the
filterBySize and filterByColor helper functions.
Merge pull request #141 from CloudNiner/feature/compare-detail-units

Fixes #134: Use units on compare/detail pages
Provide dynamic bubble size legend and add legend titles
DRY map selector logic
Fix tests
Merge pull request #142 from flibbertigibbet/feature/dynamic-bubble-legends

Feature/dynamic bubble legends
Fix glossary and add it to compare/detail
Merge pull request #143 from azavea/feature/glossary-compare

Fix glossary and add it to compare/detail