title: build errors with renderscript using Android studio 0.2.3; 4.3 SDK
body: <p>I receive the errors below while upgrading to the newest studio (0.2.3) and newest SDK (4.3). I have a few non-root functions in my renderscript file and the compiler gives a error that these functions are not supported in SDK levels 11-15. Therefore, I set my level to 16 in the build.gradle and the manifest file. I am not sure why I have to do this twice. Maybe the manifest is not used anymore. After changing to 16 level I noticed that the error below still shows "-target-api 11". How do I get around this problem? I had these non-root functions in my renderscript file before this upgrade.</p>
  
  <p>Thanks,</p>
  
  <p>Gradle: C:\Users\tec\workspace\Hunting\Hunting360\src\bw.rs:66:6: error: Non-root compute kernel convert_to_bw() is not supported in SDK levels 11-15
  C:\Users\tec\workspace\Hunting\Hunting360\src\bw.rs:86:6: error: Non-root compute kernel init_history() is not supported in SDK levels 11-15
  C:\Users\tec\workspace\Hunting\Hunting360\src\bw.rs:92:6: error: Non-root compute kernel Black_White_Process() is not supported in SDK levels 11-15</p>
  
  <p>FAILURE: Build failed with an exception.</p>
  
  <ul>
  <li><p>What went wrong:
  Execution failed for task ':Hunting360:compileDebugRenderscript'.</p>
  
  <blockquote>
    <p>Failed to run command:
    C:\Program Files (x86)\Android\android-studio\sdk\build-tools\18.0.1\llvm-rs-cc.exe -O 3 -I C:\Program Files (x86)\Android\android-studio\sdk\build-tools\18.0.1\renderscript\include\ -I C:\Program Files (x86)\Android\android-studio\sdk\build-tools\18.0.1\renderscript\clang-include\ -p C:\Users\tec\workspace\Hunting\Hunting360\build\source\rs\debug -o C:\Users\tec\workspace\Hunting\Hunting360\build\res\rs\debug\raw -target-api 11 C:\Users\tec\workspace\Hunting\Hunting360\src\bw.rs C:\Users\tec\workspace\Hunting\Hunting360\src\color.rs
    Error Code:
    1
    Output:
    C:\Users\tec\workspace\Hunting\Hunting360\src\bw.rs:66:6: error: Non-root compute kernel convert_to_bw() is not supported in SDK levels 11-15
    C:\Users\tec\workspace\Hunting\Hunting360\src\bw.rs:86:6: error: Non-root compute kernel init_history() is not supported in SDK levels 11-15
    C:\Users\tec\workspace\Hunting\Hunting360\src\bw.rs:92:6: error: Non-root compute kernel Black_White_Process() is not supported in SDK levels 11-15</p>
  </blockquote></li>
  <li><p>Try:
  Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.</p></li>
  </ul>