Add issue and obestwalter to CHANGELOG
Add issue and obestwalter to CHANGELOG

Fix #1632

nicoddemus/pytest,hpk42/pytest,tomviner/pytest,pytest-dev/pytest,vmalloc/dessert,tomviner/pytest,txomon/pytest,flub/pytest,malinoff/pytest,The-Compiler/pytest,pfctdayelise/pytest,hackebrot/pytest,hpk42/pytest,eli-b/pytest,markshao/pytest,jaraco/pytest,tgoodlet/pytest,skylarjhdownes/pytest,MichaelAquilina/pytest,Akasurde/pytest,etataurov/pytest,RonnyPfannschmidt/pytest,tareqalayan/pytest,rmfitzpatrick/pytest,The-Compiler/pytest,ddboline/pytest,alfredodeza/pytest,davidszotten/pytest,nicoddemus/pytest