Add license and update readme

manage_recipients/LICENSE.txt

@@ -0,0 +1,12 @@
+Copyright (C) 2019 Kopano and its licensors
+
+This program is free software: you can redistribute it and/or modify it under the terms of the
+GNU Affero General Public License as published by the Free Software Foundation, either version
+3 of the License, or (at your option) any later version.
+
+This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
+even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 
+GNU Affero General Public License for more details.
+
+You should have received a copy of the GNU Affero General Public License along with this program.
+If not, see http://www.gnu.org/licenses/.

manage_recipients/README.md

@@ -11,24 +11,28 @@ Manage recipients in webapp
 python remove_recipients.py --user <user>  --list
 ```
 ###### Remove recipient
-Remove options is searching in display_name, smtp_address or email_address. 
+Remove options is searching in display_name, smtp_address or email_address.
 
 ```python
 python remove_recipients.py --user <user>  --remove <recipient name>
 ```
-    
-###### Clear history 
+
+###### Clear history
 
 ```python
 python remove_recipients.py --user <user>  --remove-all
 ```
-    
+
 #### Example
 
 Remove all recipients that have example.com in there display_name, smtp_address or email_address
 
 ```python
 python remove_recipients.py --user user  --remove example.com
-```  
+```
+
+# License
+
+licensed under GNU Affero General Public License v3.