fixing all values
Adding error message to top set of buttons
Merging with upstream
adding EnvironmentalCategory model and category field to EnvironmentalVariable
populating category field for environmental variables
Merging with origin/environmental-search
adding EnvironmentalCategory to API
Adding category dropdown menu to environmental search
adding class for margin-top for row
Merge pull request #180 from stefelisabeth/environmental-search

All values now gets correct max and min, added EnvironmentalCategory model & category field to EnvironmentalVariable