Make the recovery after a crash during snapshotting easier

Added an upstream patch [1] which solves the problem.

[1] https://github.com/ceph/ceph/commit/aba6746b850e9397ff25570f08d0af8847a7162c

Closes-Bug: #1532967
Change-Id: I987cb9481507a02bf91c4bdd4e8669897c8fdde6

ceph-disk: improve base device/partition number calculation

split_dev_base_partnum fails to handle the device nodes names containing
digits (like those /dev/disk/by-id generated by udev), as a result

ceph-deploy osd prepare $node:/dev/sdc3:/dev/disk/by-id/wwn-0x50014ee00386a548-part3

fails, although it works fine this way

ceph-deploy osd prepare $node:/dev/sdc3:/dev/sde3

where /dev/sde3 is the very same partition (i.e. it's the destination of
the /dev/disk/by-id/wwn-0x50014ee00386a548-part3 symlink).

The problem has been silently fixed in the master branch by commits

https://github.com/ceph/ceph/commit/0e34742b968e
https://github.com/ceph/ceph/commit/3bc95dfc1b88
https://github.com/ceph/ceph/commit/77ff7c3dc6dd

Cherry pick those, and https://github.com/ceph/ceph/commit/1c5fea67
which fixes yet another symlink related problem.

Closes-Bug: #1529841
Change-Id: I37f83266efc4468103afd3fe82336b83f91fbe58

Update to ceph 0.94.5

... which is the latest Hammer release at the moment.
The source has been downloaded from

http://archive.ubuntu.com/ubuntu/pool/main/c/ceph/ceph_0.94.5.orig.tar.bz2
http://archive.ubuntu.com/ubuntu/pool/main/c/ceph/ceph_0.94.5-0ubuntu1.debian.tar.xz

Related-Bug: #1509498
Change-Id: Idc8be5cc6d95b3072361e5ffc3a004087e52fe5d

ceph repackaged for 7.0

Change-Id: Iee34ad580036373eec5ec3e78540dafbbe2ad92d

update ceph to 0.80.9, fixing performance regressionm introduced in 0.80.8

Change-Id: Ic320906b3a5c63061067ba7e9eae8631e82b569c

Adjust the package revision; no actual code changes

Change the revision according to the new versioning policy.

blueprint separate-mos-from-linux

Change-Id: I4aaba87652b468a61e95bee66f4178ed38a16c86

Maintenance release 0.80.8 from upstream

Since we ship custom version of ceph anyway,
we should install all available maintenance releases.

Sources:
http://gitbuilder.ceph.com/ceph-deb-trusty-x86_64-basic/ref/v0.80.8/

Change-Id: I28d084be8cc0e326123bd18416346fc0ab94f15d

Added Ceph 0.80.7

HA OpenStack makes use of Ceph. Although a recent enough version of Ceph is
shipped with Ubuntu 14.04 several upstream bugfixes which are important for
OpenStack have not been incorporated by Ubuntu yet, hence the custom package.

The source has been borrowed from Ubuntu 14.04:
http://archive.ubuntu.com/ubuntu/pool/main/c/ceph/ceph_0.80.7.orig.tar.bz2
http://archive.ubuntu.com/ubuntu/pool/main/c/ceph/ceph_0.80.7-0ubuntu0.14.04.1.debian.tar.xz

The additional (upstream) patches:
https://github.com/ceph/ceph/commit/fe7bf06366adaf787816d1e68f5e3f68e8c91134
https://github.com/ceph/ceph/commit/b8fa2ed60b6cce51701df972dbb6f5e02e0d84ba

Note: these sources are equivalent (modulo packaging changes) to the ones
in https://review.fuel-infra.org/packages/precise/ceph commit
fd95b0d17d15240b059a33b3a0f1a5bbba753817

Related-Bug: #1386369
Related-Bug: #1388506

Change-Id: Iaa9f190139c2bfafef195bb1fcd53b353512dde5

Added .gitreview