hgmerge: various cleanups Details: - put temporary file names into variables - make all temporary file names end with random part - cleanup FileMerge handling - do not use hardlinks in FileMerge change test (breaks on FAT) - try harder to keep file mtime unchanged in case of failed merge

hgmerge: add cleanup functions This patch adds functions cleanup, success and failure. The last two of these should be used instead of exit. Current code was changed to use them. It also moves $HGTMP to the top of the file (it's used in the cleanup function), changes the comment and removes now unneeded trap in the diff+patch merge.

hgmerge: add and use more tool variables This patch adds even more customisable variables with tool paths. Also moves $FILEMERGE where it belongs.

Update copyright notice

Merge with crew

Merge with Peter van Dijk

remove escaping from decriptions on repo index page

Added raw view for file annotate in hgweb.

hgweb/templates: remove unused vars from map-raw annotateline contains html and it is unused filenodelink is unused but should be defined

hgweb/templates: no need to escape the '<' '>' and '&' in raw templates

Removed executable bit from patchbomb extension.

Update version strings and add release notes to Windows specific files

Fall back to asciidoc6 html backend if html4 doesn't work. This reenables building documentation on Debian sarge, which broke after 9346a7fb3fe2.

Reverted name change (mercurial -> Mercurial) from dd5085897010.

merge with crew.