Reorganize LatinIME native build directory structure.  Now it got NDK friendly.

Change-Id: I0f62ce8a6a4d2b6134db698f8b8d0576616e524d
diff --git a/native/jni/Application.mk b/native/jni/Application.mk
new file mode 100644
index 0000000..caf3b26
--- /dev/null
+++ b/native/jni/Application.mk
@@ -0,0 +1 @@
+APP_STL := stlport_static