Remove immutable (#699)
Remove immutable (#699)

* Remove immutableJS as dependency

* Remove mention of immutableJS

agroves333/sf,andrewmoon1/moon-codes,minicooperj/MegdProject,agroves333/banno,gajananpp/DS,zakkriel/love-quest,reactGo/reactGo,phoniks/JustUs-1,Svatok/react-todo,tgallin/accompagnerlautisme,denistakeda/LifeBalance,avloss/reactGo,SrSandeepKumar/TheWeatherApp,davidychow87/etf,minicooperj/MegdProject,choonkending/react-webpack-node,denistakeda/LifeBalance,mohammed52/door-quote-automator,jonatay/linkupAdmin,johnware15/upbeat-crane,denistakeda/LifeBalance,reactGo/reactGo