Merge lp:~barry/ubuntu-system-image/test-fixes into lp:ubuntu-system-image

[Barry Warsaw]

Various repairs to the test suite. Fix and ignore PEP 8 violations. Python 2.7 does not have tar.xz files.

[lp:~barry/ubuntu-system-image/test-fixes]

275. By Barry Warsaw on 2015-09-29

Fix the test for Python 2.7 without skipping it.

276. By Barry Warsaw on 2015-09-29

Grammar

Unmerged revisions

276. By Barry Warsaw on 2015-09-29

Grammar

275. By Barry Warsaw on 2015-09-29

Fix the test for Python 2.7 without skipping it.

274. By Barry Warsaw on 2015-09-28

Fix and ignore various PEP 8 issues, and make other changes that cause the test suite to pass.

273. By Barry Warsaw on 2015-09-28

Merge sil2100's branch, with a comment fix.

272. By Barry Warsaw on 2015-06-09

Fix delta creation during image copies. The rule that deltas are only
generated for channels that are visible in the system-image config is stupid -
make sure that by default even for this case the delta is generated for the
destination channel.

271. By Steve Langasek on 2015-06-02

Merge lp:~barry/ubuntu-system-image/lp1444347

270. By Steve Langasek on 2015-05-16

Merge lp:~barry/ubuntu-system-image/lp1454447

269. By Barry Warsaw on 2015-05-15

Limit pyflakes{2,3} to run on just the appropriate bin/* scripts, based on the
shebang line.

268. By Barry Warsaw on 2015-05-15

Add a convenient script to help with grabbing a limited mirror of a remote
system-image server.

267. By Steve Langasek on 2015-05-14

Merge lp:~barry/ubuntu-system-image/lp1455119