doc: show details of command options in pages generated by docutils Before this patch, HTML/man pages generated by docutils don't show details of each command options, whether it should take argument or not for example, even though "hg help" does. This patch shows details of command options as same as "hg help" shows. This patch uses "--option <VALUE[+]>" style instead of "--option <VALUE> [+]" used in output of "hg help", because docutils requires that option argument strings starts with "<" and ends with ">".

Makefile: intermediate steps work with temporary copy of hg.pot In case of abortion or a failing step, the target file remains untouched instead of being in an intermediate state.

merge with stable