PUBLISHED_FROM=5cd78790a03580aa23dd3d2d8b825ad449083cc2

Now JS is controlled with a make variable as opposed to a proproc define.

This allows skipping compiling a whole bunch of files when JS is
disabled, e.g. whole freezing step on ESP, or compiling v7.c on CC3200
which takes a while only to be discarded in its entirety later.

Var name is SJ_ENABLE_JS (note change from disable logic to enable to be in line with other stuff). Default is 1, meaning JS is enabled.

Also changed clubby knob in the same way: SJ_ENABLE_CLUBBY, default is 1 as well.

PUBLISHED_FROM=105277e9536e423d6363a51ff9acea9550a9c496

PUBLISHED_FROM=1246247fc29eb9a75b986ff7bb2d2350a52c03fc

It would be probably good idea to also remove tools/docgen.py and
asciidoc.mk, but asciidoc.mk is still mentioned under `cloud/doc`, which
may contain some useful info which we'll need at least to review before
removing.

PUBLISHED_FROM=faf454d4c52a2f07ea8ac084cf0bd11a0c9c9b3b

Until I read the doc and find how to limit the retention,
otherwise it just eats all my ram and cpu and things start to fall
apart.

PUBLISHED_FROM=eb33fb44736f07b992270689217aca4af70513ff

Comments in headers are changed a bit: removed adoc-specific stuff,
markdown is used instead

PUBLISHED_FROM=9242cce85cc52a47a197d377e7e23804721a6bb5