Fix some issues reported by lintian

Fix some issues reported by lintian

• Use secure URI in Homepage field. (homepage-field-uses-insecure-uri)
• Bump debhelper from old 11 to 13. (package-uses-old-debhelper-compat-version)
• Set debhelper-compat version in Build-Depends. (uses-debhelper-compat-file)
• Set upstream metadata fields: Name (from ./configure), Repository, Repository-Browse. (upstream-metadata-file-is-missing, upstream-metadata-missing-repository)
• Drop transition for old debug package migration. (debug-symbol-migration-possibly-complete)
• Update standards version to 4.6.0, no changes needed. (out-of-date-standards-version)
• Avoid explicitly specifying -Wl,--as-needed linker flag. (debian-rules-uses-as-needed-linker-flag)
• Update standards version to 4.6.1, no changes needed. (out-of-date-standards-version)
• Set upstream metadata fields: Repository-Browse.
• Update standards version to 4.6.2, no changes needed. (out-of-date-standards-version)

Debdiff

These changes affect the binary packages:

[The following lists of changes regard files as different if they have different names, permissions or owners.]

Files in second set of .debs but not in first

-rw-r--r--  root/root   /usr/lib/debug/.build-id/97/cfcdf20d2b73b7dab23bf33deecf1fa045332d.debug

Files in first set of .debs but not in second

-rw-r--r--  root/root   /usr/lib/debug/.build-id/07/8097aefe5958a8c1ace47ffe2164c94828d044.debug

Control files of package gir1.2-gtkclutter-1.0: lines which differ (wdiff format)

• Homepage: [-http​://www.clutter-project.org/-] {+https​://www.clutter-project.org/+}

Control files of package libclutter-gtk-1.0-0: lines which differ (wdiff format)

• Homepage: [-http​://www.clutter-project.org/-] {+https​://www.clutter-project.org/+}

Control files of package libclutter-gtk-1.0-0-dbgsym: lines which differ (wdiff format)

• Breaks: libclutter-gtk-1.0-dbg (<< 1.8.0-2~)
• Build-Ids: 078097aefe5958a8c1ace47ffe2164c94828d044 97cfcdf20d2b73b7dab23bf33deecf1fa045332d
• Replaces: libclutter-gtk-1.0-dbg (<< 1.8.0-2~)

Control files of package libclutter-gtk-1.0-dev: lines which differ (wdiff format)

• Homepage: [-http​://www.clutter-project.org/-] {+https​://www.clutter-project.org/+}

Control files of package libclutter-gtk-1.0-doc: lines which differ (wdiff format)

• Homepage: [-http​://www.clutter-project.org/-] {+https​://www.clutter-project.org/+}

You can also view the diffoscope diff (unfiltered).

This merge proposal was created by the Janitor bot, and it will automatically rebase or close this proposal as appropriate when the target branch changes. Any comments you leave here will be read by the Janitor's maintainers.

Build and test logs for this branch can be found at https://janitor.debian.net/run/2223e85e-7d16-4a4b-b4fd-8a588c99ca76.