- Enabled compile on Windows (bzip2 library needed).

- Fixed crash after the second call to RsInit::InitRetroShare when keyring does not exist.
The instance of AuthSSL was created twice and AuthGPG was deleted without stopping the thread. Stopped the AuthGPG thread on exit of RetroShare.
- Added the correct path to the keyring for Windows in RsInit::copyGnuPGKeyrings.
- Changed the detection of the portable version on Windows from the file "gpg.exe" to the file "portable".

git-svn-id: http://svn.code.sf.net/p/retroshare/code/branches/v0.5-OpenPGP@5211 b45a01b8-16f6-495d-af2f-9b41ad6348cc

libretroshare/src/rsserver/p3face-config.cc

@@ -193,5 +193,5 @@ void RsServer::rsGlobalShutDown()
 #endif
 #endif // MINIMAL_LIBRS
 
-	// AuthGPGExit();
+	AuthGPG::exit();
 }