patch: generalize the use of patchmeta in applydiff() - Add patchmeta.copy() and emit copies from iterhunks. Modifying patchmeta instances in applydiff() makes things simpler. - Rename selectfile() into makepatchmeta(). It is responsible for creating patchmeta for regular patches. - Pass patchmeta objects to patchfile() directly patchmeta instances were associated with git patches, for regular patches we had to pass additional variables to tell the patch intent to patchfile(). Instead, we generate patchmeta for regular patches and pass them. This will also help with patch filtering by matcher objects.

patch: stop updating changed files set in applydiff() This information is more correctly returned by backends. The extra updated file removed from test-mq-merge.t output came from changes from git patches being counted before being really applied in some cases.

patch: turn patch() touched files dict into a set

paper, coal: define the diffstat templates The templates output the filename, the total number of changes to the file and a bar graph of the adds and removes. The filename is a link into the diff output. The diffstat is not yet displayed, but it can be manually added to the changeset page template.

web: provide the file number to the diffstat templates This allows the diffstat templates to link into the diff output. For example, the URLs of the first three files within the diff are #l1.1, #l2.1, #l3.1.

web: include all files in the diffstat The webutil.diffstat function now returns a diffstat template for each file in the diff. It previously returned a template for each file returned by ctx.files() which did not work well for merge changesets.

hgignore: ignore MANIFEST.in (generated since 2ce7dfe17bc5)

bookmarks: recognize the current bookmark when the local encoding isn't UTF-8 The current bookmark is stored in bookmark.current, supposingly in UTF-8. But the call to encoding.fromlocal() is missing, therefore Hg is not able to recognize the current bookmark in the case that bookmark uses characters of which the bit stream is different between local encoding and UTF-8. For example, the Chinese version of Windows cmd uses gbk(cp936), not UTF-8. Therefore I won't be able to make a Chinese bookmark current. By wrapping mark in a encoding.fromlocal() call, the problem is solved.