Add basic gradle support

.gitignore

@@ -1,8 +1,10 @@
 local.properties
 build.properties
 .classpath
-bin/*
-gen/*
+/bin/
+/gen/
+/build
+/.gradle
 proguard.cfg
 build.xml
 *~

build.gradle

@@ -0,0 +1,41 @@
+buildscript {
+	repositories {
+		mavenCentral()
+	}
+	dependencies {
+		classpath 'com.android.tools.build:gradle:0.6.+'
+	}
+}
+
+apply plugin: 'android'
+
+dependencies {
+	compile files('libs/android-support-v4.jar')
+}
+
+android {
+	compileSdkVersion 19
+	buildToolsVersion "19.0.0"
+
+	sourceSets {
+		main {
+			manifest.srcFile 'AndroidManifest.xml'
+			java.srcDirs = ['src', 'extern/Universal-Image-Loader/library/src']
+			resources.srcDirs = ['src']
+			aidl.srcDirs = ['src']
+			renderscript.srcDirs = ['src']
+			res.srcDirs = ['res']
+			assets.srcDirs = ['assets']
+		}
+
+		instrumentTest.setRoot('tests')
+	}
+
+	buildTypes {
+		release {
+			runProguard true
+			proguardFile 'proguard-project.txt'
+			proguardFile getDefaultProguardFile('proguard-android.txt')
+		}
+	}
+}