localrepo._tag: add a seek before writing the new tag Some systems require a seek (or flush) between read and write operations on the same file object. This should fix issue838.

convert: use 'unknown' and '0 0' if commit author or date weren't specified Closes issue873.

httprepo: use separate handlers for HTTP and HTTPS This is needed to keep the code in keepalive.py from sharing the same connection between HTTP and HTTPS. 52ce0d6bc375 explains why we were using a single handler. This should fix issue892.

move __del__ from httprepository to basehttphandler This should prevent the next patch from reopening an issue fixed by 0d94e4a3ddb4.

mq: don't allow patches with some reserved names The current list of reserved names includes only mq control files. Also, reserve names starting with ".hg" (to avoid troubles with e.g. .hgignore and .hgtags), and with ".mq" (to allow future extensions). This should fix issue841.

mq: pop/refresh: avoid losing revisions not managed by mq We already disallow committing on top of an mq revision exactly to avoid losing this new revision during a qpop/qrefresh, so this can be seen as an additional safety check. If this is not enough to fix issue844, it should at least prevent it from happening.

mqrepo: don't abort if the status file has an unknown node

sshrepo: be more careful while reading data This should avoid some tracebacks when the server sends some garbage.

fix markup of templates/{,old/}header.tmpl

templates: move filters to their own module This eliminates just about all Mercurial dependencies in templater.py