Suppress warning popups if silent_connection is set

Warnings dsabled if silent_connection is true
- interactive service is not installed or not running
- duplicate configs found and ignored

v2: Update description of --silent_connection in README
and English resource file (translations not updated).

Signed-off-by: Selva Nair <selva.nair@gmail.com>

README.rst

@@ -185,7 +185,8 @@ log_append
   
 silent_connection
     If set to "1", the status window with the OpenVPN log output will
-    not be showed while connecting.
+    not be shown while connecting. Warnings such as interactive service
+    not started or multiple config files with same name are also suppressed.
 
 service_only
     If set to "1", OpenVPN GUI's normal "Connect" and "Disconnect"

main.c

@@ -189,7 +189,7 @@ int WINAPI _tWinMain (HINSTANCE hThisInstance,
     exit(1);
   }
 
-  if (!IsUserAdmin() && strtod(o.ovpn_version, NULL) > 2.3)
+  if (!IsUserAdmin() && strtod(o.ovpn_version, NULL) > 2.3 && !o.silent_connection)
     CheckIServiceStatus(TRUE);
 
   BuildFileList();

openvpn_config.c

@@ -221,6 +221,9 @@ BuildFileList()
 {
     static bool issue_warnings = true;
 
+    if (o.silent_connection)
+        issue_warnings = false;
+
     /*
      * If no connections are active reset num_configs and rescan
      * to make a new list. Else we keep all current configs and

res/openvpn-gui-res-en.rc

@@ -355,7 +355,7 @@ BEGIN
                   "--allow_proxy\t\t: 1=Show Proxy Settings menu.\n" \
                   "--show_balloon\t\t: 0=Never, 1=At initial connect, 2=At every re-connect.\n" \
                   "--service_only\t\t: 1=Enable Service Only mode.\n" \
-                  "--silent_connection\t\t: 1=Do not show the status dialog while connecting.\n" \
+                  "--silent_connection\t\t: 1=Do not show the status dialog while connecting or non-critical warnings at startup.\n" \
                   "--show_script_window\t: 0=Hide Script execution window, 1=Show it.\n" \
                   "--passphrase_attempts\t: Number of passphrase attempts to allow.\n" \
                   "--connectscript_timeout\t: Time to wait for connect script to finish.\n" \