Target Android 7.1; and other updates to latest tools.

app/build.gradle

@@ -1,14 +1,14 @@
 apply plugin: 'com.android.application'
 
 android {
-    compileSdkVersion 24
-    buildToolsVersion "25.0.0"
+    compileSdkVersion 25
+    buildToolsVersion '26.0.2'
     compileOptions.encoding = 'UTF-8'
 
     defaultConfig {
         applicationId "net.sourceforge.opencamera"
         minSdkVersion 15
-        targetSdkVersion 24 // can't target 25 or later due to https://issuetracker.google.com/issues/37140083 , waiting for Android Studio 2.4 for this to be fully fixed
+        targetSdkVersion 25
 
 		renderscriptTargetApi 20
 		//renderscriptSupportModeEnabled true // don't use support library as it bloats the APK, and we don't need pre-4.4 support
@@ -31,6 +31,6 @@ android {
 }
 
 dependencies {
-    compile 'com.android.support:support-v4:24.0.0'
+    compile 'com.android.support:support-v4:25.4.0'
     testCompile 'junit:junit:4.12'
 }

build.gradle

@@ -2,14 +2,16 @@
 buildscript {
     repositories {
         jcenter()
+        google()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:2.3.3'
+        classpath 'com.android.tools.build:gradle:3.0.0'
     }
 }
 
 allprojects {
     repositories {
         jcenter()
+        google()
     }
 }

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
-#Sat Mar 04 15:22:55 GMT 2017
+#Mon Oct 30 23:14:05 GMT 2017
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-3.3-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.1-all.zip