[minor] pass admin_password in wnf.install

wnf.py

@@ -196,10 +196,10 @@ def setup_translation(parser):
 
 # install
 @cmd
-def install(db_name, source_sql=None, site=None, verbose=True, force=False, root_password=None, site_config=None):
+def install(db_name, source_sql=None, site=None, verbose=True, force=False, root_password=None, site_config=None, admin_password='admin'):
 	from webnotes.install_lib.install import Installer
 	inst = Installer('root', db_name=db_name, site=site, root_password=root_password, site_config=site_config)
-	inst.install(db_name, source_sql=source_sql, verbose=verbose, force=force)
+	inst.install(db_name, source_sql=source_sql, verbose=verbose, force=force, admin_password=admin_password)
 
 @cmd
 def reinstall(site=None, verbose=True):
@@ -237,6 +237,7 @@ def add_system_manager(email, first_name=None, last_name=None, site=None):
 	profile.make_controller().add_roles(*roles)
 
 	webnotes.conn.commit()
+	webnotes.destroy()
 
 @cmd
 def make_demo(site=None):