Update changelog for 1.3
Update changelog for 1.3

puppetlabs/puppetdb,ajroetker/puppetdb,puppetlabs/puppetdb,highb/puppetdb,kbarber/puppetdb,cprice404/puppetdb,mullr/puppetdb,johnduarte/puppetdb,kbrezina/puppetdb,rbrw/puppetdb,grimradical/puppetdb,jantman/puppetdb,jantman/puppetdb,kbrezina/puppetdb,wkalt/puppetdb,waynr/puppetdb,mullr/puppetdb,rbrw/puppetdb,melissa/puppetdb,puppetlabs/puppetdb,rbrw/puppetdb,grimradical/puppetdb,shrug/puppetdb,kbarber/puppetdb,kbrezina/puppetdb,waynr/puppetdb,senior/puppetdb,johnduarte/puppetdb,rbrw/puppetdb,kbrezina/puppetdb,ajroetker/puppetdb,shrug/puppetdb,johnduarte/puppetdb,wkalt/puppetdb,jantman/puppetdb,mullr/puppetdb,waynr/puppetdb,ajroetker/puppetdb,highb/puppetdb,kbarber/puppetdb,cprice404/puppetdb,rbrw/puppetdb,senior/puppetdb,mullr/puppetdb,puppetlabs/puppetdb,highb/puppetdb,grimradical/puppetdb,senior/puppetdb,waynr/puppetdb,melissa/puppetdb,ajroetker/puppetdb,wkalt/puppetdb,melissa/puppetdb,johnduarte/puppetdb,shrug/puppetdb,highb/puppetdb,puppetlabs/puppetdb,kbarber/puppetdb,senior/puppetdb,wkalt/puppetdb,shrug/puppetdb,grimradical/puppetdb,cprice404/puppetdb,mullr/puppetdb