convert: fix crash when filemap filtering is changed

rebase: preserve metadata from grafts of changes (issue4001)

rebase: rework extrafn handling to support multiple extrafns This makes it possible to pass keepbranches and extrafn to rebase at the same time, although nobody uses that functionality presently. This is a precursor to keeping graft metadata.

hgweb: call process_dates with a specified selector in ajax scroll Now this function processes only newly added entries, and not old ones, the amount of which can be much bigger.

hgweb: add parentSelector argument to process_dates Allow specifying parent selector of elements to process, useful for incremental page updates.

hgweb: optimize process_dates function This function looped over every node due to getElementsByTagName('*'), instead of using selectors. In this patch we use querySelectorAll('.age') and process only these nodes, which is much faster and also doesn't require extra condition. Browser compatibility isn't sacrificed: IE 8+, FF 3.5+, Opera 10+.

shelve: allow shelving of a change with an mq patch applied We allow shelving of of changes on top of a MQ repository. MQ will not allow repository changes on top of applied patches. We introduce checkapplied in MQ to bypass this check.

shelve: new output format for shelve listings Use a more condensed and mercurial-like output format for shelve listing. We don't prefix the message with 'shelved from...' anymore as our default name contains the branch name or the user used his own name. To avoid just printing the last commit message, we drop writing the description to stdout. old output: default [1s ago] shelved from default (01ba9745): create conflict new output: default (1s ago) create conflict

shelve: add a shelve extension to save/restore working changes This extension saves shelved changes using a temporary draft commit, and bundles the temporary commit and its draft ancestors, then strips them. This strategy makes it possible to use Mercurial's bundle and merge machinery to resolve conflicts if necessary when unshelving, even when the destination commit or its ancestors have been amended, squashed, or evolved. (Once a change has been unshelved, its associated unbundled commits are either rolled back or stripped.) Storing the shelved change as a bundle also avoids the difficulty that hidden commits would cause, of making it impossible to amend the parent if it is a draft commits (a common scenario). Although this extension shares its name and some functionality with the third party hgshelve extension, it has little else in common. Notably, the hgshelve extension shelves changes as unified diffs, which makes conflict resolution a matter of finding .rej files and conflict markers, and cleaning up the mess by hand. We do not yet allow hunk-level choosing of changes to record. Compared to the hgshelve extension, this is a small regression in usability, but we hope to integrate that at a later point, once the record machinery becomes more reusable and robust.

localrepo: make report level in repo.transaction configurable repo.transaction always writes to stderr when a transaction aborts. In order to be able to abort a transaction quietly (e.g shelve needs a temporary view on the repo) we need to make the report level configurable.