sailfish: add contributors list and update info page

- Add list of contributors
- Add link to GitHub repository
- Update copyright year

sailfish/qml/components/ContributorsSection.qml

@@ -0,0 +1,48 @@
+import QtQuick 2.6
+import Sailfish.Silica 1.0
+
+Column {
+    property string headerText
+    // The contributors model
+    property var contributors
+    width: parent.width
+    SectionHeader {
+        text: headerText
+    }
+
+    ColumnView {
+        model: contributors
+        itemHeight: Theme.itemSizeLarge
+
+        delegate: ListItem {
+            width: parent.width
+            contentHeight: Theme.itemSizeLarge
+
+            onClicked: {
+                if (model.url) {
+                    Qt.openUrlExternally(model.url)
+                }
+            }
+
+            Column {
+                anchors {
+                    verticalCenter: parent.verticalCenter
+                    left: parent.left
+                    right: parent.right
+                    leftMargin: Theme.horizontalPageMargin
+                    rightMargin: Theme.horizontalPageMargin
+                }
+
+                Label {
+                    text: model.name
+                }
+
+                Label {
+                    text: model.role
+                    color: highlighted ? Theme.secondaryHighlightColor : Theme.secondaryColor
+                }
+            }
+        }
+    }
+
+}