Fixed an inaccuracy in the 1.7.x upgrades notes for json.
Fixed an inaccuracy in the 1.7.x upgrades notes for json.

Removed the implication that we previously did not conform to ECMA-404.

reneploetz/mesos,dforsyth/mesos,chhsia0/mesos,reneploetz/mesos,abudnik/mesos,jpeach/mesos,reneploetz/mesos,reneploetz/mesos,Gilbert88/mesos,Gilbert88/mesos,gsantovena/mesos,jpeach/mesos,kaysoky/mesos,kaysoky/mesos,Gilbert88/mesos,dforsyth/mesos,andschwa/mesos,andschwa/mesos,chhsia0/mesos,jpeach/mesos,kaysoky/mesos,reneploetz/mesos,abudnik/mesos,Gilbert88/mesos,gsantovena/mesos,gsantovena/mesos,gsantovena/mesos,kaysoky/mesos,chhsia0/mesos,dforsyth/mesos,reneploetz/mesos,dforsyth/mesos,abudnik/mesos,Gilbert88/mesos,andschwa/mesos,kaysoky/mesos,abudnik/mesos,kaysoky/mesos,kaysoky/mesos,dforsyth/mesos,chhsia0/mesos,Gilbert88/mesos,andschwa/mesos,andschwa/mesos,gsantovena/mesos,andschwa/mesos,chhsia0/mesos,jpeach/mesos,andschwa/mesos,gsantovena/mesos,chhsia0/mesos,dforsyth/mesos,reneploetz/mesos,abudnik/mesos,abudnik/mesos,chhsia0/mesos,jpeach/mesos,jpeach/mesos,jpeach/mesos,abudnik/mesos,Gilbert88/mesos,dforsyth/mesos,gsantovena/mesos