mq: fix strip failing to unlink a bundle os.unlink doesn't know how to deal with urls

symlinks: minimal support for symlinks in merge/update This will get angry, confused, and sad if you try to merge a symlink with a regular file.

symlinks: add flags param to wwrite Now wwrite can set symlink and exec for files

replace filehandle version of wwrite with wwritedata

unify encode/decode filter routines

symlinks: add _link checking function

symlinks: use is_link wherever is_exec is used

symlinks: don't complain about symlinks

symlinks: add a linkfunc

symlinks: add basic symlink functions to util.py

symlinks: check whether a filesystem supports symlinks

exec: remove last flag from is_exec

exec: add execfunc to simplify exec flag support on non-exec filesystems

pull umask-checking up

exec: checkexec checks whether filesystem supports exec flags

expanded bash_completion for transplant extension

Yield entries from [paths], too, when completing -R/--repository.

Corrected synopsis for transplant.

Improved error message for extensions overriding commands (with test): - Old text "module foo overrides bar" was misread as overriding module bar. - Only print a single warning line per extension instead of one for each command.

sync with stable

Don't use -f for rm in tests where not needed. Drop /bin/ from /bin/rm.

test-manifest-merging: we only need to remove files

Make test-manifest-merging less likely to delete the whole filesystem

Send encoding information in rss header