Replace `suffix` with `rework_tags` in Change.

It should contain a list of tags between a tag and its reworking. Not
integrated into the rest of the code, yet.
Replace `suffix` with `rework_tags` in Plan.

When reworking a change, the code knows which tag was used for the file name
suffix, so we just assign that one tag. But when parsing a plan, we don't
know. So add all tags going back to the change being reworked, in reverse
order by change, so that we get the most recent tags first (and are more
likely have the first tag be the same as was previously used for `suffix`).
Replace `suffix` with `rework_tags` in Engine.

As in the plan parser, we want to get tags back to the reworked tag in reverse
order by change.
Properly check for file existence.
Die and list all altneratives when reworked deploy script cannot be found.
Use first possible file name instead of throwing an error.

There are situations where the script hasn't been created yet, such as right
after a call to `Plan->rework`, so we can't really throw an error yet. So go
back to using a value, but use the first value, rather than the last.
Merge branch 'rework_tags'

Closes issue #70.
Note change in rework script name algorithm in Changes.
Timestamp v0.951.
Update translation files.
Increment to 0.952.
Add v09.52 section to Changes.
Add root directory to @INC in `t/sqitch`.

This is to make it easier for translators to do testing. They can just do
something like this:

    dzil msg-compile fr
    LANGUAGE=fr perl ./t/sqitch foo
    rm -rf LocaleData

Otherwise, it might find a copy of the compiled catalog elsewhere in `@INC`
instead of the one the translator wants to test.
Switch classes from Moose to Mouse.

This is just getting the classes switched.  Fortunately there's MouseX versions
of everything in use.

There's failures which will be addressed later.

Left a handful of the Moose classes in either because they're consuming Moose
roles or extending Moose classes.
Mouse::Util::TypeConstraints does not have maybe_type, do the equivalent.
Mouse appears to have a bug with $attr->default($instance).  Work around it.
Typo.
Merge remote-tracking branch 'schwern/switch_to_mouse'
Require specific versions of Mouse modules.
Note switch to Mouse.