Add some missing terms in languge template file

Author: PeterDaveHello

lang/transgui.template

@@ -31,6 +31,7 @@ Authentication=Authentication
 b=b
 Cancel=Cancel
 Client=Client
+Client Certificate=Client Certificate
 Close to tray=Close to tray
 Comment=Comment
 Completed on=Completed on
@@ -116,6 +117,7 @@ Peers=Peers
 Pieces=Pieces
 Port=Port
 Priority=Priority
+Private Key=Private Key
 Properties=Properties
 Proxy password=Proxy password
 Proxy port=Proxy port
@@ -314,6 +316,7 @@ Application options=Application options
 Ask for password=Ask for password
 Authentication required=Authentication required
 Average out transfer speeds to eliminate fluctuations=Average out transfer speeds to eliminate fluctuations
+Big Toolbar=Big Toolbar
 Connect to %s=Connect to %s
 Connect to Transmission using proxy server=Connect to Transmission using proxy server
 Connect to Transmission=Connect to Transmission