Added Travis build status image to README

Install android build tools before running tests on Travis

.travis.yml

@@ -4,7 +4,7 @@ android:
   components:
     - platform-tools
     - tools
-    - build-tools-21.1.1
+    - build-tools-22.0.1
 
     # The SDK version used to compile your project
     - android-19
@@ -19,7 +19,10 @@ android:
     # if you need to run emulator(s) during your tests
     - sys-img-armeabi-v7a-android-19
     #- sys-img-x86-android-17
-
+
+before_install:
+  - echo yes | android update sdk --all --filter build-tools-22.0.1 --no-ui --force > /dev/null
+
 # Emulator Management: Create, Start and Wait
 before_script:
   - echo no | android create avd --force -n test -t android-19 --abi armeabi-v7a

README.md

@@ -1,3 +1,7 @@
+<a href="https://travis-ci.org/codinguser/gnucash-android"
+<img src="https://travis-ci.org/codinguser/gnucash-android.svg?branch=develop" alt="Travis build status" />
+</a>
+
 # Introduction
 
 GnuCash Android is a companion expense-tracker application for GnuCash (desktop) designed for Android.