be more accurate re: supported devices

Author: Alex Cohn

app/build.gradle

@@ -7,8 +7,9 @@ android {
     defaultConfig {
         applicationId 'org.freedesktop.nativecamera2'
         minSdkVersion 23
+        maxSdkVersion 23
         targetSdkVersion 21
-        versionCode 1
+        versionCode 2
 
         externalNativeBuild {
             ndkBuild {

app/src/main/AndroidManifest.xml

@@ -1,8 +1,8 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="org.freedesktop.nativecamera2">
-    <uses-feature android:name="android.hardware.camera2.full" />
-    <uses-feature android:glEsVersion="0x00020000" />
+    <uses-feature android:name="android.hardware.camera2.full" android:required="false" />
+    <uses-feature android:glEsVersion="0x00020000" android:required="false" />
     <uses-permission android:name="android.permission.CAMERA" />
     <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
     <application