fpb, should generate checksums for each file in plugin

[Evgeniy L]

Version:
* master 11dcdf2 Fpb, do not fail validation if 'attributes' is not set

Steps to reproduce:
1. run plugin build 'fpb --build plugin_path'

Actual result:
There is no file with checksums

Expected result:
There is file with checksum for each file.
As result there is no way to find out if plugin was changed after installation.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/142845

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/142845
Committed: https://git.openstack.org/cgit/stackforge/fuel-plugins/commit/?id=857cc39d6358e02fed78bfd0d1a5a785469e1881
Submitter: Jenkins
Branch: master

commit 857cc39d6358e02fed78bfd0d1a5a785469e1881
Author: Evgeniy L <email address hidden>
Date: Thu Dec 18 19:56:17 2014 +0400

    fpb, generate checksums of each file in the plugin

    Without checksums file it's impossible to find out if
    plugin was changed after installation.

    Change-Id: Idf66bf1e5c3a39ef55ba61295b55c2bbf0e40748
    Closes-bug: #1403960

[Evgeniy L (rustyrobot)]

Now file checksums.sha1 is created.

[Alexander Kurenyshev (akurenyshev)]

Verified on
api: '1.0'
      astute_sha: ca7635a356a90404d3dedb5cf26f1d16e07144a9
      build_id: 2015-03-05_22-54-44
      build_number: '165'
      feature_groups:
      - mirantis
      fuellib_sha: 07288d7bfde840b7ec47292ff96a3b670a79c859
      fuelmain_sha: 0e45b31db1677651d6ddb1c852d62ebfd8875dcd
      nailgun_sha: f12221d79e0d97c7b4405331e11a54fc5dcfcd4e
      ostf_sha: 8df5f2fcdae3bc9ea7d700ffd64db820baf51914
      production: docker
      python-fuelclient_sha: 4eb787f1ad969bd23c93d192865543dbd45a8626
      release: '6.1'

Steps to verify:
1) Build plugin, run in nailgun container: fuel --build <path_to_plugin>
2) Install plugin into fuel
3) Check path /var/www/nailgun/plugins/<plugin_name>

File checksums.sha1 exists. And contain all checksums