Update build.gradle. Fix travis errors.

Author: patloew

library/build.gradle

@@ -25,6 +25,9 @@ android {
     testOptions {
         unitTests.returnDefaultValues = true
     }
+    lintOptions {
+        abortOnError false
+    }
 }
 
 dependencies {

sample/build.gradle

@@ -29,14 +29,18 @@ retrolambda {
     javaVersion JavaVersion.VERSION_1_6
 }
 
+repositories {
+    maven { url 'https://dl.bintray.com/patloew/maven' }
+}
+
 dependencies {
     compile fileTree(dir: 'libs', include: ['*.jar'])
     testCompile 'junit:junit:4.12'
     compile 'com.android.support:appcompat-v7:24.0.0'
     compile "com.android.support:design:24.0.0"
 
-    compile project(':library')
-    //compile 'com.patloew.rxfit:rxfit:1.2.1'
+    //compile project(':library')
+    compile 'com.patloew.navigationviewfragmentadapters:adapters:0.1.1'
 
     compile 'com.jakewharton:butterknife:8.1.0'
     apt 'com.jakewharton:butterknife-compiler:8.1.0'