fix device version parsing and confirm it works with SHAs

app/src/test/java/com/geeksville/mesh/model/DeviceVersionTest.kt

@@ -0,0 +1,17 @@
+package com.geeksville.mesh.model
+
+import android.net.Uri
+import org.junit.Assert.*
+import org.junit.Test
+
+class DeviceVersionTest {
+    /** make sure we match the python and device code behavior */
+    @Test
+    fun canParse() {
+
+        assertEquals(10000, DeviceVersion("1.0.0").asInt)
+        assertEquals(10101, DeviceVersion("1.1.1").asInt)
+        assertEquals(12357, DeviceVersion("1.23.57").asInt)
+        assertEquals(12357, DeviceVersion("1.23.57.abde123").asInt)
+    }
+}