Change minimum Android version to 4.0, update dependencies

build.gradle

@@ -1,6 +1,7 @@
 buildscript {
     repositories {
         jcenter()
+
     }
     dependencies {
         classpath 'com.android.tools.build:gradle:2.3.3'
@@ -17,32 +18,35 @@ apply plugin: 'me.tatarka.retrolambda'
 
 repositories {
     jcenter()
+    maven {
+        url "https://maven.google.com"
+    }
 }
 
 dependencies {
     compile 'eu.chainfire:libsuperuser:1.0.0.201704021214'
-    compile 'com.android.support:design:25.3.1'
+    compile 'com.android.support:design:26.1.0'
     compile 'com.google.zxing:android-integration:3.3.0'
-    compile 'com.google.code.gson:gson:2.8.1'
+    compile 'com.google.code.gson:gson:2.8.2'
     compile 'org.mindrot:jbcrypt:0.4'
     compile 'com.google.guava:guava:20.0'
     compile 'com.annimon:stream:1.1.8'
     compile 'com.android.volley:volley:1.0.0'
     compile 'com.android.support.constraint:constraint-layout:1.0.2'
-    androidTestCompile 'com.android.support.test:rules:0.5'
-    androidTestCompile 'com.android.support:support-annotations:25.3.1'
+    androidTestCompile 'com.android.support.test:rules:1.0.1'
+    androidTestCompile 'com.android.support:support-annotations:26.1.0'
 }
 
 android {
-    compileSdkVersion 25
-    buildToolsVersion "25.0.2"
+    compileSdkVersion 26
+    buildToolsVersion "26.0.1"
     buildTypes.debug.applicationIdSuffix ".debug"
     dataBinding.enabled = true
 
     defaultConfig {
         applicationId "com.nutomic.syncthingandroid"
-        minSdkVersion 11
-        targetSdkVersion 25
+        minSdkVersion 14
+        targetSdkVersion 26
         versionCode 4124
         versionName "0.9.14"
         testApplicationId 'com.nutomic.syncthingandroid.test'