Bug 1181700 - Update simplejson to v3.7.3
Bug 1181700 - Update simplejson to v3.7.3

https://github.com/simplejson/simplejson/blob/master/CHANGES.txt
https://github.com/simplejson/simplejson/compare/v3.6.5...v3.7.3

wlach/treeherder,jgraham/treeherder,moijes12/treeherder,edmorley/treeherder,akhileshpillai/treeherder,kapy2010/treeherder,avih/treeherder,jgraham/treeherder,deathping1994/treeherder,glenn124f/treeherder,edmorley/treeherder,parkouss/treeherder,wlach/treeherder,avih/treeherder,avih/treeherder,vaishalitekale/treeherder,sylvestre/treeherder,vaishalitekale/treeherder,sylvestre/treeherder,KWierso/treeherder,vaishalitekale/treeherder,vaishalitekale/treeherder,jgraham/treeherder,sylvestre/treeherder,gbrmachado/treeherder,kapy2010/treeherder,tojonmz/treeherder,avih/treeherder,wlach/treeherder,gbrmachado/treeherder,tojon/treeherder,gbrmachado/treeherder,tojon/treeherder,adusca/treeherder,deathping1994/treeherder,deathping1994/treeherder,tojonmz/treeherder,wlach/treeherder,glenn124f/treeherder,rail/treeherder,adusca/treeherder,kapy2010/treeherder,sylvestre/treeherder,glenn124f/treeherder,moijes12/treeherder,avih/treeherder,edmorley/treeherder,jgraham/treeherder,moijes12/treeherder,gbrmachado/treeherder,wlach/treeherder,rail/treeherder,glenn124f/treeherder,wlach/treeherder,gbrmachado/treeherder,akhileshpillai/treeherder,rail/treeherder,moijes12/treeherder,vaishalitekale/treeherder,rail/treeherder,jgraham/treeherder,adusca/treeherder,akhileshpillai/treeherder,jgraham/treeherder,edmorley/treeherder,glenn124f/treeherder,KWierso/treeherder,akhileshpillai/treeherder,KWierso/treeherder,parkouss/treeherder,tojonmz/treeherder,parkouss/treeherder,vaishalitekale/treeherder,deathping1994/treeherder,deathping1994/treeherder,sylvestre/treeherder,gbrmachado/treeherder,rail/treeherder,parkouss/treeherder,parkouss/treeherder,glenn124f/treeherder,adusca/treeherder,adusca/treeherder,tojonmz/treeherder,rail/treeherder,akhileshpillai/treeherder,adusca/treeherder,sylvestre/treeherder,deathping1994/treeherder,parkouss/treeherder,tojon/treeherder,kapy2010/treeherder,tojonmz/treeherder,KWierso/treeherder,avih/treeherder,kapy2010/treeherder,tojon/treeherder,tojonmz/treeherder,akhileshpillai/treeherder,moijes12/treeherder,moijes12/treeherder