0.93

got 0.93

- show out-of-memory errors from zlib inflate() and deflate() calls
- make 'got fetch' and 'got send' release the work tree lock earlier
- tog: add basic regress for log limit and log search
- fix "no git repository found" on locked work trees; regression from 0.91
- gotwebd: CSS improvements, looks much better in text-based browsers
- gotwebd: don't lose track of the current file during commit log pagination
- gotwebd: move buffering from the fastcgi layer to the template layer
- got diff: fix "No newline at end of file" showing up where not expected
- make 'got send' detect connections unexpectedly closed by server
- fix detection of modified files in fresh work trees created with checkout -E
- gotd: fix bogus "gotsh: operation timed out" errors; regression from 0.92