transforms/inline: strip docstrings
devices/rtio_core: rename RTIOCounter to RTIOIn and document
language/core: pass docstrings through kernel decorator
language/core: use 'var' for class attribute docstring
rename artiq.language.std -> artiq
devices/dds_core: document
doc: various cleanups
rtio: raise RTIOSequenceError exceptions when events are not submitted in-order
add autobuild hook