VWR-1095 fix for problems with uploads following bulk upload failure

de minimus contribution accepted without CA - Oz Linden

doc/contributions.txt

@@ -219,6 +219,8 @@ Catherine Pfeffer
 Celierra Darling
 	VWR-1274
 	VWR-6975
+Coaldust Numbers
+    VWR-1095
 Cron Stardust
 	VWR-10579
 Cypren Christenson

indra/newview/llassetuploadresponders.cpp

@@ -126,6 +126,7 @@ void LLAssetUploadResponder::error(U32 statusNum, const std::string& reason)
 			break;
 	}
 	LLUploadDialog::modalUploadFinished();
+	LLFilePicker::instance().reset();  // unlock file picker when bulk upload fails
 }
 
 //virtual