add build tools v26

Author: fchauveau

Dockerfile

@@ -6,7 +6,7 @@ MAINTAINER Cedric Gatay <c.gatay@code-troopers.com>
 
 # Set ENV
 ENV ANDROID_SDK_VERSION=r25.2.5
-ENV ANDROID_BUILD_TOOLS_VERSION=build-tools-22.0.1,build-tools-23.0.3,build-tools-24.0.3,build-tools-25.0.2
+ENV ANDROID_BUILD_TOOLS_VERSION=build-tools-22.0.1,build-tools-23.0.3,build-tools-24.0.3,build-tools-25.0.2,build-tools-26.0.2
 ENV ANDROID_SDK_FILENAME=tools_${ANDROID_SDK_VERSION}-linux.zip
 ENV ANDROID_SDK_URL=https://dl.google.com/android/repository/${ANDROID_SDK_FILENAME}
 ENV ANDROID_API_LEVELS=android-17,android-18,android-19,android-20,android-21,android-22,android-23,android-24,android-25,android-26