Build a hamcrest hostdex.

Change-Id: I01179ea989aac667902f66724c937ded9fc2b945
Merge "Build a hamcrest hostdex."
Only build hamcrest-hostdex if WITH_HOST_DALVIK is true.

Change-Id: I83daa433ab7183d259d8e0083de641fe32ae49eb
Merge "Only build hamcrest-hostdex if WITH_HOST_DALVIK is true."
Merge tag 'android-4.3_r2.1' into jellybean-mr2.1

Android 4.3 release 2.1