Merge remote-tracking branch 'upstream/master'
Merge remote-tracking branch 'upstream/master'
DEF/ANAL - issue EDEN-23: Dygraphs plot line does not show up on IE8 
https://internal.cida.usgs.gov/jira/browse/EDEN-23

Patch dygraphs.js for IE8.
Note that axis labels are not rotated.
Merge pull request #49 from rhayes-cida/master

EDEN-23 patch