Fix some issues reported by lintian

Fix some issues reported by lintian

• Bump debhelper from old 12 to 13. (package-uses-old-debhelper-compat-version)
• Set upstream metadata fields: Contact, Name (from ./configure), Repository-Browse. (upstream-metadata-file-is-missing)
• Fix day-of-week for changelog entry 0.14-2. (debian-changelog-has-wrong-day-of-week)
• Update standards version to 4.6.1, no changes needed. (out-of-date-standards-version)
• Avoid explicitly specifying -Wl,--as-needed linker flag. (debian-rules-uses-as-needed-linker-flag)

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/lintian-fixes/pkg/vino/8ca38014-28c7-47c3-8e10-41764130c926.

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/3f/d98041eaeadc5e7a04c0b37c084d61771deb51.debug

Files in first set of .debs but not in second

-rw-r--r--  root/root   /usr/lib/debug/.build-id/ee/026eef6cb92764597fb3e5499fdad10bc4b3fd.debug

No differences were encountered between the control files of package **vino**

Control files of package vino-dbgsym: lines which differ (wdiff format)

• Build-Ids: ee026eef6cb92764597fb3e5499fdad10bc4b3fd 3fd98041eaeadc5e7a04c0b37c084d61771deb51

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