wix: add new json templates folder to MSI installers

templater: rename parsestring() to unquotestring() (API) Since db7463aa080f, it doesn't parse string escapes.

templater: remove noop calls of parsestring(s, quoted=False) (API) Since db7463aa080f, parsestring(s, quoted=False) just returns s.

bookmarks: simplify iscurrent to isactivewdirparent (API) Previously this function accepted two optional parameters that were unused by any callers and complicated the function. Today, the terms 'active' and 'current' are interchangeably used throughout the codebase in reference to the active bookmark (the bookmark that will be updated with the next commit). This leads to confusion among developers and users. This patch is part of a series to standardize the usage to 'active' throughout the mercurial codebase and user interface.

tests: add a new commit to test-commandline-template This commit modifies, adds, renames, removes files all at once. It will be mostly interesting for an upcoming test relating to the status log template.

run-tests: spread and document the content of time tuple The spreading will make future modification clearer. The documentation improve code readability.

run-tests: when building json, get time data in the same order as elsewhere The json code was changing the order of the time tuple for unclear reasons. We now use the same order as everywhere else.

run-tests: stop explicit expansion of time data We are about to record more complex time-related data, which will require repeated changes of every loop touching times data. That will also extend such lines to a point where things become too long. Instead, we iterate on each entry and expand values in the loops. We keep intermediate variables in most cases to preserve readability. The loop producing json data does a strange inversion for no obvious reason. We preserved that for now and will fix it in another changeset.

run-tests: refactor json entry creation logic We are about to add more timing related information to each entry. Having a single place where the json entry is created is going to be much simpler.

run-tests: when building json, use result.failures instead of result.faildata It is unclear to me why 'faildata' was used. Let's use the same kind of attribute as for the other groups.

run-test: add a test for json output when -i is used The -i can apparently confused some internal data structure, we want to make sure we do not regress.

changegroup: drop _changelog and _manifest properties We already have a _repo property on the packer, and we only access the changelog and manifest revlog in one place, so it's just as easy to get them from self._repo.