Update target in properties and scripts to match value from AndroidManifest.xml; make exception for Travis

project.properties

@@ -11,5 +11,5 @@
 proguard.config=${sdk.dir}/tools/proguard/proguard-android.txt:proguard-project.txt
 
 # Project target.
-target=android-19
+target=android-20
 android.library.reference.1=external/netcipher/libnetcipher

setup-ant.bat

@@ -1,7 +1,7 @@
 @ECHO OFF
 SETLOCAL enabledelayedexpansion
 
-SET "target=android-19"
+SET "target=android-20"
 
 REM Update ant setup in project and all sub-projects
 SET "pattern=project.properties"

setup-ant.sh

@@ -1,6 +1,11 @@
 #!/bin/sh
 
-target="android-19"
+target="android-20"
+
+# Travis doesn't support android-20 yet
+if [ -n "$TRAVIS" ]; then
+    target="android-19";
+fi
 
 # Update ant setup in project and all sub-projects
 for f in `find external/ -name project.properties`; do