Update copyright start year

Author: stevenroose

src/qt/intro.cpp

@@ -129,7 +129,7 @@ Intro::Intro(QWidget *parent, uint64_t blockchain_size, uint64_t chain_state_siz
     ui->lblExplanation1->setText(ui->lblExplanation1->text()
         .arg(tr(PACKAGE_NAME))
         .arg(m_blockchain_size)
-        .arg(2009)
+        .arg(2018)
         .arg(tr("")) //ELEMENTS: left blank on purpose
     );
     ui->lblExplanation2->setText(ui->lblExplanation2->text().arg(tr(PACKAGE_NAME)));