fixing error checking for environmental search
environmental search accepts decimals
codebook info only displayed after selecting a variable
adding []all checkbox to environmental search
fixed display of 'Working...' when all values is selected
removing blank lines
Correct min and max values when filter is changed
removing unnecessary console.log line
Merge remote-tracking branch 'upstream/master' into environmental-search
Adding all values option to filters
making 'all values' textboxes read only
Merge pull request #148 from stefelisabeth/environmental-search

Fixed error checking for environmental search, added all values option to environmental search