localrepo, sshrepo: use Boolean create argument in __init__

commands: replace 'x = f(); return x' with 'return f()'

merge with stable

subrepo: respect non-default path for incoming/outgoing Push and pull set repo._subtoppath before pushing or pulling subrepos. The incoming and outgoing commands needed to do the same.

run-tests: print a newline after all warnings

annotate: fix alignment of columns in front of line numbers (issue2807)

merge with stable

revset: the name is optional for the tag predicate

revset: note case-sensitive match in grep

revset: note case-insensitive matches in keyword and user