Prepare composer packages for release

.gitignore

 bin
 vendor
 typo3_src
-composer.lock
 html/index.php
 html/typo3
 html/fileadmin/

composer.json

 {
   "name": "t3o/my",
   "description": "Website for my.typo3.org",
-  "minimum-stability": "dev",
   "authors": [
     {
       "name": "t3o team",
@@ -28,13 +27,13 @@
   ],
   "require": {
     "typo3/cms": "^8.7",
-    "helhum/typo3-console": "^4.2",
+    "helhum/typo3-console": "^5.0",
     "dmitryd/typo3-realurl": "^2.1",
-    "t3o/t3o_slack": "dev-master",
-    "t3o/t3olayout": "dev-develop",
-    "t3o/t3o_ldap": "dev-master",
+    "t3o/t3o_slack": " ^1.1",
+    "t3o/t3olayout": "^2.1",
+    "t3o/t3o_ldap": "^1.0",
     "typo3-ter/femanager": "^4.0",
-    "in2code/userprofile": "dev-develop"
+    "in2code/userprofile": "^0.2"
   },
   "config": {
     "bin-dir": "bin"