* patch nltk egg so that the default data location is (buildout_directory)/parts/nltk-data without explicitly specifing by NLTK_DATA environment variable.
* download collection can be overridden like 'collection = aaa bbb ccc'.

/ref http://community.slapos.org/forum/NLTK-Buildout--Download-and-install-nltk_data

/cc @klaus, @Kreisel 

/reviewed-on !58

To pick up

    gitlab-workhorse@32ec77c4

/reviewed-by TrustMe  (I hope)

@rafael says:

    Use master instead.

    nexedi/slapos@000d0e5a (comment 4716)

So lamp-edge -> master

@rafael says:

    development stuff from marco, it was probably removed or not even
    included.

    In theory you can use master instead.

    692729bc (comment 4713)

So lapp-resilient3 -> master

To pick up

    nexedi/gitlab-ce@827d3914

/reviewed-by TrustMe (I hope)

To pick up

    nexedi/gitlab-ce@1bfb586a

/reviewed-by @kazuhiko

kirr/ remains as my personal development place and nexedi/ ones become
official repositories.

Discussed with @kazuhiko
/reviewed-by TrustMe

version up: OpenSSL 1.0.2g, fixing CVE-2016-0800, CVE-2016-0705, CVE-2016-0798, CVE-2016-0797, CVE-2016-0799, and CVE-2016-0702.

To pick up

    kirr/gitlab-ce@8d922ec3
    kirr/gitlab-ce@5d6b7eba

See:

    kirr/gitlab-ce@5a6e6e55

for discussion.

/cc @kazuhiko, @jerome
/reviewed-by TrustMe

Shacache now uses CDN based URL for download.


  Update configuration to use CDN based domains for download date from CDN. 

See merge request !56