hbisect: more consistent variable name

hbisect: confine loop to the relevant interval In this context we know that ancestors[rev] == None for all rev <= goodrev, so looping further back is unnecessary (and confusing).

win32: assign winstdout to sys.__stdout__ as well (issue2888) On Windows sys.stdout was being replaced with winstdout, which caused util.system() to redirect its output (due to 406b6d7bdcb9). That causes interactive tools (such as vim) to stop working.

alias: note interaction of shell aliases with early opts in help

alias: fix up test results

hooks: redirect stdout/err/in to the ui descriptors when calling python hooks We need to make sure that python hooks I/O goes through the ui descriptors so it doesn't mess the command server protocol.

alias: pass local ui to shell alias This avoids an additional config read

aliases: drop cwd manipulation Already done in _dispatch

dispatch: move shell alias handling after early arg handling --cwd, --repo, and --config obviously should be handled first

merge with stable