[Android][Starter][fix #26] should not re-initialize asserts directory for Starter
[Android][Starter][fix #26] should not re-initialize asserts directory for Starter

Because Starter has
    ["/Library/RubyMotion/lib/motion/project/template/android/launch_image"]
as asserts directory by default.

If re-initialize it, Starter cannot find launch_screen.png

hboon/Flow,HipByte/Flow,hboon/Flow,hboon/Flow,HipByte/Flow,HipByte/Flow,HipByte/Flow,hboon/Flow