* html <hr> follows text, before footnotes (refine later)

* rsync remote images partial fix

* minor bug fix, related to error message passing, in texpdf and url

* sisu_manual version info

* vim ftplugin, status line info on cursor position modified

* composite master files: eliminate ._sst, replace with .ssm.sst

* multiple remote hosts ("distributed" rsyncing), yml config files remote now
  uses array

with all recent changes (directory shunting) much testing is yet to be done,
state is unstable some things are known not to work this instant, e.g. sisu -V