Fix #411, used values instead of subtotal
Fix #410: also escaped special characters
Added english labels also in es and fr files
Fix #409: Tiers are into child DIV of "cell-content" DIV: added
descendant empty check before apply N/A
Fix #414
Fix #412
Fixed #416
Fix #415
Merge pull request #417 from xandros6/frims

Importing commits from Xandros repo (#409-#416).
Close #409 .
Close #410 .
Close #411 .
Close #412 .
Close #414 .
Close #415 .
Close #416 .