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[benhylau]

@lgierth This is the mostly cleaned up version of all the changes we did. Plus:

• Full AdminApi listed, though unused methods are not implemented
• Added install_debug and install_release to ndk and java build, then install on device
• Timing and toggle button out-of-sync issues are mostly resolved
• On start-up we generate a new node, no more hard-coded keys

Of course, we still need cjdroute and cjdroute-init to make this work. Those aren't committed in this repo.