Stop using browser user-agent that is obviously fake

[gfto]

Currently the following user-agent is being used "Mozilla/4.0 (compatible; MSIE 9.11; Windows NT 10.0; Open Live Writer 1.0)" (with MSIE and Windows version adjusted).

However, MSIE 9 never introduced itself as Mozilla/4 and this is triggering anti-bot warnings on some sites.

Please stop using fake user-agent and consider the following patch:

diff --git a/src/managed/OpenLiveWriter.CoreServices/ApplicationEnvironment.cs b/src/managed/OpenLiveWriter.CoreServices/ApplicationEnvironment.cs
index b4d864e..7d8505a 100644
--- a/src/managed/OpenLiveWriter.CoreServices/ApplicationEnvironment.cs
+++ b/src/managed/OpenLiveWriter.CoreServices/ApplicationEnvironment.cs
@@ -493,9 +493,9 @@ public static string FormatUserAgentString(string productName, bool browserBased
             string userAgent;
             if (browserBased)
             {
-                // e.g. "Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 7.0; Open Live Writer 1.0)"
+                // e.g. "Mozilla/5.0 (compatible; MSIE 8.0; Windows NT 7.0; Open Live Writer 1.0)"
                 userAgent = String.Format(CultureInfo.InvariantCulture,
-                                          "Mozilla/4.0 (compatible; MSIE {0}.{1}; Windows NT {2}.{3}; {4} 1.0)",
+                                          "Mozilla/5.0 (compatible; MSIE {0}.{1}; Windows NT {2}.{3}; {4} 1.0)",
                                           majorBrowserVersion,
                                           minorBrowserVersion,
                                           osVersion.Major,