Check JavaVMAttachArgs::version in CheckJNI.

Bug: 8363798
Change-Id: I314bf6d5d64a1e27ad2c1580532133859031c623
Fix a minor bug in dvmCreateInterpThread

Change-Id: I452ee02290bc7e0be7fefcf5755c5cd9628142dc
Fix minor leaks caused by failed initialization in JNI_CreateJavaVM

Change-Id: I97e4b162fa729c97a1e71786b696f2befed56835