Add Travis CI build for the sample project

The build will compile the sample project and create an APK. We
add a new profile in the sample project configuration to define
where the Android SDK is located in the Travis CI system.

.travis.yml

@@ -0,0 +1,25 @@
+language: android
+sudo: false
+
+cache:
+ directories:
+ - $HOME/.m2
+
+before_install:
+ - mkdir ~/bin
+ - wget https://raw.github.com/technomancy/leiningen/stable/bin/lein -P ~/bin/
+ - chmod a+x ~/bin/lein
+ - mkdir ~/.lein
+
+android:
+ components:
+ - build-tools-21.1.1
+ - android-18
+ - extra-android-m2repository
+
+lein: ~/bin/lein
+
+script:
+ - cd sample
+ - DEBUG=1 lein with-profile travis droid build
+ - DEBUG=1 lein with-profile travis droid apk

sample/project.clj

@@ -19,6 +19,16 @@
 
  :profiles {:default [:dev]
 
+ ;; This is a profile for Travis CI build
+ :travis
+ [:android-common :android-user
+ {:dependencies [[org.clojure/tools.nrepl "0.2.10"]]
+ :target-path "target/debug"
+ :android {:aot :all-with-unused
+ :rename-manifest-package "test.leindroid.sample.debug"
+ :manifest-options {:app-name "Android-Clojure (debug)"}
+ :sdk-path "/usr/local/android-sdk/"}}]
+
  :dev
  [:android-common :android-user
  ;; The above profiles can be specified in your profiles.clj and