Adding resource helloiot.properties

.gitignore

@@ -1,5 +1,5 @@
 # build application files
-helloiot.properties
+/helloiot.properties
 target/
 /nbproject/
 /.gradle/

src/main/resources/com/adr/helloiot/resources/helloiot.properties

@@ -0,0 +1,19 @@
+#    HelloIoT is a dashboard creator for MQTT
+#    Copyright (C) 2017 Adri\u00e1n Romero Corchado.
+#
+#    This file is part of HelloIot.
+#
+#    HelloIot is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU General Public License as published by
+#    the Free Software Foundation, either version 3 of the License, or
+#    (at your option) any later version.
+#
+#    HelloIot is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU General Public License for more details.
+#
+#    You should have received a copy of the GNU General Public License
+#    along with HelloIot.  If not, see <http://www.gnu.org/licenses/>.
+#
+exception.topicscannotbeempty=Subscription topics cannot be empty.