Merge branch 'master' into chore/linter

# Conflicts:
#	lib/contracts/contribution.js
#	lib/contracts/contributor.js
#	lib/contracts/proposal.js
#	lib/kredits.js
#	lib/serializers/contributor.js
#	yarn.lock

package.json

@@ -1,6 +1,6 @@
 {
   "name": "kredits-contracts",
-  "version": "5.0.0",
+  "version": "5.3.0",
   "description": "Ethereum contracts and npm wrapper for Kredits",
   "main": "./lib/kredits.js",
   "directories": {
@@ -52,8 +52,7 @@
   "dependencies": {
     "ethers": "^4.0.27",
     "ipfs-http-client": "^30.1.1",
-    "kosmos-schemas": "github:67P/kosmos-schemas#feature/contribution_date_time",
-    "rsvp": "^4.8.2",
+    "kosmos-schemas": "^2.0.0",
     "tv4": "^1.3.0"
   },
   "keywords": [