Build a junit-runner hostdex.

Change-Id: I856b232025bd4dacf63ade6d22e4770635e1cdf4
Merge "Build a junit-runner hostdex."
Fix the Mac build by adding a WITH_HOST_DALVIK test.

Change-Id: I75d4bf9e81661aca6363e9249dd04e5f2f9ecd8f
Merge "Fix the Mac build by adding a WITH_HOST_DALVIK test."
Simplify makefile.

Change-Id: I0b7d48f54b6e53aa77481e5720de9595ef6c8c3a
Merge "Simplify makefile."
Merge tag 'android-4.3_r2.1' into jellybean-mr2.1

Android 4.3 release 2.1