Attempt to fix selector memeory leak. Add update checker

app/build.gradle

@@ -8,8 +8,8 @@ android {
         applicationId "com.stardust.scriptdroid"
         minSdkVersion 19
         targetSdkVersion 23
-        versionCode 114
-        versionName "2.0.7 Alpha"
+        versionCode 116
+        versionName "2.0.7 Alpha3"
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
         multiDexEnabled true
 
@@ -17,7 +17,7 @@ android {
     buildTypes {
         release {
             shrinkResources true
-            minifyEnabled true
+            minifyEnabled false
             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
         }
     }
@@ -75,6 +75,7 @@ dependencies {
     compile 'com.yqritc:recyclerview-flexibledivider:1.4.0'
     compile 'me.zhanghai.android.materialprogressbar:library:1.3.0'
     compile group:'com.twofortyfouram', name:'android-plugin-client-sdk-for-locale', version:'[4.0.2, 5.0['
+    compile 'com.android.volley:volley:1.0.0'
     compile(name: 'libtermexec-release', ext: 'aar')
     compile(name: 'emulatorview-release', ext: 'aar')
     compile(name: 'term-debug', ext: 'aar')