convert: fix non-ASCII filenames retrieval from git sources (issue 1360)

hgrc.5: explain order of mail.charsets TODO: add mail.charsets section to hgrc.5.ja.txt

test 261a9f47b44b: grep w/ match in last line w/o newline Last character in match output omitted to avoid infinite loop.

Bookmarks: Add the bookmarks extension Mercurial bookmarks are local moveable pointers to changesets. If you commit a changeset that is based on a changeset that has a bookmark on it, the bookmark is forwarded to the new changeset. Thanks to Ian Dees, Ronny Pfannschmidt for their patches, Thanks to ronny, tonfa, prianha, mpm, #mercurial for their comments and their support that helped me to get things done.

zeroconf: don't break on hg showconfig

findincoming: build the correct list from the start

Remove trailing spaces.

Document config option format.usefncache and improve format.usestore docs.

add format.usefncache config option (default is true) This enables for example "hg clone --config format.usefncache=0" which creates a non-fncache repository, which then can be read by Mercurial versions before 7946503ec76e.

fix pull racing with push/commit (issue1320) changegroup() has a problem when nodes which does not descend from a node in <bases> are added to remote after the discovery phase. If that happens, changegroup() won't send the correct set of nodes, ie. some nodes will be missing. To correct it we have to find the set of nodes that both remote and self have (called <common>), and send all the nodes not in <common>. This fix has some overhead, in the worst case it will re-send a whole branch. A proper fix to avoid this overhead might be to change the protocol so that the <common> nodes are sent (instead of the <bases> of the missing nodes).