- Allow fetching all revisions from transwiki Special:Import
- Allow fetching all revisions from Special:Export GET request
- Disable output buffering on Special:Export; should help with streaming large numbers of history items.
- Allow setting a maximum number of revisions for history Special:Export; pages with more than $wgExportMaxHistory revisions are excluded from export when history is requested.
- Fix transwiki import of pages with space in name