diff --git a/.travis.yml b/.travis.yml
index 82531aa0..e26ccaa4 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -16,4 +16,4 @@ android:
   licenses:
     - '.+'
 script:
-    - ./gradlew assembleFreeRelease -PdisablePreDex
+    - ./gradlew assembleFreeRelease
diff --git a/build.gradle b/build.gradle
index 7abae97c..deaae0e2 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,123 +1,115 @@
 // Top-level build file where you can add configuration options common to all
 // sub-projects/modules.
 buildscript {
-    repositories {
-        jcenter()
-        mavenCentral()
-    }
-    dependencies {
-        classpath 'com.android.tools.build:gradle:1.5.0'
-    }
+	repositories {
+		jcenter()
+		mavenCentral()
+	}
+	dependencies {
+		classpath 'com.android.tools.build:gradle:1.5.0'
+	}
 }
 
 allprojects {
-    repositories {
-        jcenter()
-        mavenCentral()
-        maven {
-            url 'http://lorenzo.villani.me/android-cropimage/'
-        }
-    }
+	repositories {
+		jcenter()
+		mavenCentral()
+		maven {
+			url 'http://lorenzo.villani.me/android-cropimage/'
+		}
+	}
 }
 
 apply plugin: 'com.android.application'
 
 repositories {
-    jcenter()
-    mavenCentral()
+	jcenter()
+	mavenCentral()
 }
 
 configurations {
-    playstoreCompile
+	playstoreCompile
 }
 
 dependencies {
-    compile project(':libs:MemorizingTrustManager')
-    compile 'org.sufficientlysecure:openpgp-api:10.0'
-    compile 'com.soundcloud.android:android-crop:1.0.1@aar'
-    compile 'com.android.support:support-v13:23.1.1'
-    compile 'org.bouncycastle:bcprov-jdk15on:1.52'
-    compile 'org.bouncycastle:bcmail-jdk15on:1.52'
-    compile 'org.jitsi:org.otr4j:0.22'
-    compile 'org.gnu.inet:libidn:1.15'
-    compile 'com.google.zxing:core:3.2.1'
-    compile 'com.google.zxing:android-integration:3.2.1'
-    compile 'de.measite.minidns:minidns:0.1.7'
-    compile 'de.timroes.android:EnhancedListView:0.3.4'
-    compile 'me.leolin:ShortcutBadger:1.1.3@aar'
-    compile 'com.kyleduo.switchbutton:library:1.2.8'
-    compile 'org.whispersystems:axolotl-android:1.3.4'
-    compile 'com.makeramen:roundedimageview:2.2.0'
-    playstoreCompile 'com.google.android.gms:play-services-gcm:8.3.0'
+	compile project(':libs:MemorizingTrustManager')
+	compile 'org.sufficientlysecure:openpgp-api:10.0'
+	compile 'com.soundcloud.android:android-crop:1.0.1@aar'
+	compile 'com.android.support:support-v13:23.1.1'
+	compile 'org.bouncycastle:bcprov-jdk15on:1.52'
+	compile 'org.bouncycastle:bcmail-jdk15on:1.52'
+	compile 'org.jitsi:org.otr4j:0.22'
+	compile 'org.gnu.inet:libidn:1.15'
+	compile 'com.google.zxing:core:3.2.1'
+	compile 'com.google.zxing:android-integration:3.2.1'
+	compile 'de.measite.minidns:minidns:0.1.7'
+	compile 'de.timroes.android:EnhancedListView:0.3.4'
+	compile 'me.leolin:ShortcutBadger:1.1.3@aar'
+	compile 'com.kyleduo.switchbutton:library:1.2.8'
+	compile 'org.whispersystems:axolotl-android:1.3.4'
+	compile 'com.makeramen:roundedimageview:2.2.0'
+	playstoreCompile 'com.google.android.gms:play-services-gcm:8.3.0'
 }
 
 android {
-    compileSdkVersion 23
-    buildToolsVersion "23.0.2"
+	compileSdkVersion 23
+	buildToolsVersion "23.0.2"
 
-    defaultConfig {
-        minSdkVersion 14
-        targetSdkVersion 23
-        versionCode 127
-        versionName "1.10.0"
-        archivesBaseName += "-$versionName"
-        applicationId "eu.siacs.conversations"
-    }
+	defaultConfig {
+		minSdkVersion 14
+		targetSdkVersion 23
+		versionCode 127
+		versionName "1.10.0"
+		archivesBaseName += "-$versionName"
+		applicationId "eu.siacs.conversations"
+	}
 
-    compileOptions {
-        sourceCompatibility JavaVersion.VERSION_1_7
-        targetCompatibility JavaVersion.VERSION_1_7
-    }
+	compileOptions {
+		sourceCompatibility JavaVersion.VERSION_1_7
+		targetCompatibility JavaVersion.VERSION_1_7
+	}
 
-    productFlavors {
-        playstore
-        free
-    }
-    if (project.hasProperty('mStoreFile') &&
-            project.hasProperty('mStorePassword') &&
-            project.hasProperty('mKeyAlias') &&
-            project.hasProperty('mKeyPassword')) {
-        signingConfigs {
-            release {
-                storeFile file(mStoreFile)
-                storePassword mStorePassword
-                keyAlias mKeyAlias
-                keyPassword mKeyPassword
-            }
-        }
-        buildTypes.release.signingConfig = signingConfigs.release
-    } else {
-        buildTypes.release.signingConfig = null
-    }
+   productFlavors {
+		playstore
+		free
+	}
+	if (project.hasProperty('mStoreFile') &&
+			project.hasProperty('mStorePassword') &&
+			project.hasProperty('mKeyAlias') &&
+			project.hasProperty('mKeyPassword')) {
+		signingConfigs {
+			release {
+				storeFile file(mStoreFile)
+					storePassword mStorePassword
+					keyAlias mKeyAlias
+					keyPassword mKeyPassword
+			}
+		}
+		buildTypes.release.signingConfig = signingConfigs.release
+	} else {
+		buildTypes.release.signingConfig = null
+	}
 
-    lintOptions {
-        disable 'ExtraTranslation', 'MissingTranslation', 'InvalidPackage', 'MissingQuantity', 'AppCompatResource'
-    }
+	lintOptions {
+		disable 'ExtraTranslation', 'MissingTranslation', 'InvalidPackage', 'MissingQuantity', 'AppCompatResource'
+	}
 
-    subprojects {
+	subprojects {
 
-        afterEvaluate {
-            if (getPlugins().hasPlugin('android') ||
-                    getPlugins().hasPlugin('android-library')) {
+		afterEvaluate {
+			if (getPlugins().hasPlugin('android') ||
+					getPlugins().hasPlugin('android-library')) {
 
-                configure(android.lintOptions) {
-                    disable 'AndroidGradlePluginVersion', 'MissingTranslation'
-                }
-            }
+				configure(android.lintOptions) {
+					disable 'AndroidGradlePluginVersion', 'MissingTranslation'
+				}
+			}
 
-        }
+		}
+	}
 
-        project.plugins.whenPluginAdded { plugin ->
-            if ("com.android.build.gradle.AppPlugin".equals(plugin.class.name)) {
-                project.android.dexOptions.preDexLibraries = !project.hasProperty('disablePreDex')
-            } else if ("com.android.build.gradle.LibraryPlugin".equals(plugin.class.name)) {
-                project.android.dexOptions.preDexLibraries = !project.hasProperty('disablePreDex')
-            }
-        }
-    }
-
-    packagingOptions {
-        exclude 'META-INF/BCKEY.DSA'
-        exclude 'META-INF/BCKEY.SF'
-    }
+	packagingOptions {
+		exclude 'META-INF/BCKEY.DSA'
+		exclude 'META-INF/BCKEY.SF'
+	}
 }