0.92

got 0.92

- allow modified files to be deleted during merges if content exists in repo
- disallow overlapping repo and work tree in 'got checkout'
- speed up opening of the work tree's file-index
- speed up deltification by resizing block hash tables less often
- add support for commit keywords to 'got log -x'
- fix 'got log -dPp' diffstat duplication bug
- improve out-of-date reporting accuracy in 'got branch -l' output
- document that the log -d option implies log -P
- prevent file-index corruption via deletion of missing locally-added files
- prevent a double-free in got_worktree_commit
- fix regression from 0.76: 'got diff' output matches /usr/bin/diff -p again
- gotsh: do not set POLLOUT flag if there is no data to send, for portability
- gotd: stop logging "unexpected end of file" when client decides to disconnect
- make gotd flush pending messages before disconnecting the client upon success
- gotwebd: fix bogus modification times displayed when show_repo_age is off
- tog: show work tree base commit marker in the log view
- tog: fix an infinite loop that could be triggered via log view search
- plug a memory leak in tog's blame view
- tog regress: prevent crash in ncurses when Ctrl-C is used to cancel test runs
- tog regress: fix occasional failures due to commit timestamp mismatch
- regress: nix 'set -A' kshism from tests for portability