Build: upgraded build toolchain.

myTracks/build.gradle

@@ -1,13 +1,12 @@
 apply plugin: 'com.android.application'
 
 android {
-    compileSdkVersion 17
-    buildToolsVersion "23.0.2"
+    compileSdkVersion 26
 
     defaultConfig {
         applicationId "com.google.android.maps.mytracks"
         minSdkVersion 9
-        targetSdkVersion 19
+        targetSdkVersion 26
 
         testApplicationId "com.google.android.maps.mytracks.test"
         testInstrumentationRunner "android.test.InstrumentationTestRunner"

myTracks/src/main/AndroidManifest.xml

@@ -91,9 +91,6 @@ limitations under the License.
     android:name="com.google.android.maps.mytracks.permission.MAPS_RECEIVE"
     android:protectionLevel="signature" />
   <uses-permission android:name="com.google.android.maps.mytracks.permission.MAPS_RECEIVE" />
-  <uses-sdk
-    android:minSdkVersion="8"
-    android:targetSdkVersion="19" />
   <!-- Required features -->
   <uses-feature
     android:glEsVersion="0x00020000"