Merge pull request #228 from jcesarmobile/CB-13753

CB-13753: Add build-tools-26.0.2 to travis
diff --git a/.travis.yml b/.travis.yml
index 77dd88e..86c335c 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -37,6 +37,7 @@
     android:
       components:
       - tools
+      - build-tools-26.0.2
   - env: PLATFORM=android-5.1
     os: linux
     language: android
@@ -44,6 +45,7 @@
     android:
       components:
       - tools
+      - build-tools-26.0.2
   - env: PLATFORM=android-6.0
     os: linux
     language: android
@@ -51,6 +53,7 @@
     android:
       components:
       - tools
+      - build-tools-26.0.2
   - env: PLATFORM=android-7.0
     os: linux
     language: android
@@ -58,6 +61,7 @@
     android:
       components:
       - tools
+      - build-tools-26.0.2
 before_install:
 - rm -rf ~/.nvm && git clone https://github.com/creationix/nvm.git ~/.nvm && (cd ~/.nvm
   && git checkout `git describe --abbrev=0 --tags`) && source ~/.nvm/nvm.sh && nvm