Puki 0.3.2

Fixes the phone brain: Puki on the phone couldn't reply (Android hid the GPU's OpenCL library from the app), which also froze the screen for seconds. Smoother on tablets: backgrounds, confetti, painting and dragging redraw far less each frame. Privacy and safety: no Android cloud backups, nothing the child says in the system log, the pairing code kept out of logs, the PC's firewall rule limited to the home network. A smaller download (shrunk release build), sky-blue start screen, newer English voices, and the first automated tests.