docs: updated old commands not longer available starting from 4.11

docs/contributing/db-schema.rst

@@ -47,6 +47,6 b' Migration Command'
 
 After you've changed the database ORM and migration files, you can run::
 
-   paster upgrade-db <ini-file> 
+   rc-upgrade-db <ini-file>
 
 The database will be upgraded up to the version defined in the ``__init__`` file.
  No newline at end of file

docs/contributing/dev-setup.rst

@@ -162,7 +162,7 b' Setup the Development Database'
 To create a development database, use the following example. This is a one
 time operation executed from the nix-shell of rhodecode-enterprise-ce sources ::
 
-    paster setup-rhodecode dev.ini \
+    rc-setup-app dev.ini \
         --user=admin --password=secret \
         --email=[e-mail] \
         --repos=~/my_dev_repos

release.nix

@@ -136,7 +136,7 b' let'
       mkdir repos
 
       echo "Preparing the database"
-      paster setup-rhodecode \
+      rc-setup-app \
         --user=admin \
         --email=[e-mail] \
         --password=secret \