Improves bankroll graph

app/src/main/java/net/pokeranalytics/android/calculus/bankroll/BankrollReport.kt

@@ -203,8 +203,8 @@ class BankrollReport(var setup: BankrollReportSetup) : RowRepresentable {
 	fun lineDataSet(context: Context): LineDataSet {
 
 		val entries = mutableListOf<Entry>()
-		this.evolutionPoints.forEach {
-			val entry = Entry(it.date.time.toFloat(), it.value.toFloat(), it.data)
+		this.evolutionPoints.forEachIndexed { index, point ->
+			val entry = Entry(index.toFloat(), point.value.toFloat(), point.data)
 			entries.add(entry)
 		}
 		return DataSetFactory.lineDataSetInstance(entries, "", context)