Merge pull request apache#257 from jcesarmobile/CB-13746

CB-13746: Add build-tools-26.0.2 to travis

Author: jcesarmobile

.travis.yml

@@ -43,6 +43,7 @@ matrix:
       - tools
       - platform-tools
       - tools
+      - build-tools-26.0.2
   - env: PLATFORM=android-5.1
     os: linux
     language: android
@@ -52,6 +53,7 @@ matrix:
       - tools
       - platform-tools
       - tools
+      - build-tools-26.0.2
   - env: PLATFORM=android-6.0
     os: linux
     language: android
@@ -61,6 +63,7 @@ matrix:
       - tools
       - platform-tools
       - tools
+      - build-tools-26.0.2
   - env: PLATFORM=android-7.0
     os: linux
     language: android
@@ -70,6 +73,7 @@ matrix:
       - tools
       - platform-tools
       - 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