[Merge] ~3v1n0/ubuntu-dev-tools:mksbuild-hook into ubuntu-dev-tools:master

[Marco Trevisan (Treviño)]

The proposal to merge ~3v1n0/ubuntu-dev-tools:mksbuild-hook into ubuntu-dev-tools:master has been updated.

Commit message changed to:

mk-sbuild: Add support to run ~/.mk-sbuild.finish.sh after finish

At times, depending on the schroot name, arch or custom needs one may
need to customize all the created schroots in a way that is not
supported by the tools in play.

As per this, once the schroot is created, check if a local script is
available, and if one is there run it.
On failure, cleanup the schroot.

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An example, is for example running this all the times:

 sed -i s/enabled: true/enabled: false/ /etc/pkgbinarymangler/stripfiles.conf

For more details, see:
https://code.launchpad.net/~3v1n0/ubuntu-dev-tools/+git/ubuntu-dev-tools/+merge/401824
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Your team Ubuntu Development Team is requested to review the proposed merge of ~3v1n0/ubuntu-dev-tools:mksbuild-hook into ubuntu-dev-tools:master.