Updated language for time off request modal. Closes #1434
Fixed shading on chemical record index when null closes #1415
use coffee script and. Added return if null to si highlight logic.
Tests for chemical records recordStatusCssClass function.
Merge pull request #1439 from affektive/minor_ui_ux

Updated language for time off request modal. Closes #1434 Fixed SI shading on index Closes #1415