build_history_base as remote build on lxbroy10: thus self_update has already happened once, and thus avoids conflicts with parallel builds on shared home directory;

more robust: normalize potentially symbolic rev;

proxy setup for lrzcloud1;

tuned signature;

support for permissive connections, for odd situations where host keys are not accepted;

proper target directory;

eliminated dead code from 2a1acc88a180 (presumably left over from ML type-inference experimentation);

document existing Apache2 configuration;