Build for any SDK on Travis. (#774)

* Build for any SDK on Travis.

* Use sdkmanager to approve licenses

* Revert "Use sdkmanager to approve licenses"

This reverts commit b51d415.

Author: Jawnnypoo

.travis.yml

@@ -4,22 +4,14 @@ branches:
     - /^\d+\.\d+\.\d+$/ # regex
 
 language: android
-sudo: false
 
 jdk:
   - oraclejdk8
 
-android:
-  components:
-    - tools
-    - platform-tools
-    - build-tools-27.0.0
-    - android-27
-    - doc-27
-
 before_install:
     - pip install --user codecov
-    - yes | sdkmanager "platforms;android-27"
+    - mkdir "$ANDROID_HOME/licenses" || true
+    - echo "d56f5187479451eabf01fb78af6dfcb131a6481e" > "$ANDROID_HOME/licenses/android-sdk-license"
 
 script:
   - ./gradlew clean testDebugUnitTest jacocoTestReport

Parse/build.gradle

@@ -25,7 +25,6 @@ buildscript {
 
 android {
     compileSdkVersion rootProject.ext.compileSdkVersion
-    buildToolsVersion rootProject.ext.buildToolsVersion
 
     defaultConfig {
         minSdkVersion rootProject.ext.minSdkVersion
@@ -51,7 +50,7 @@ android {
 }
 
 ext {
-    okhttpVersion = '3.9.0'
+    okhttpVersion = '3.9.1'
 }
 
 dependencies {