Porting AUH to devtool and making it suitable for local use

This patchset replaces custom recipe rewriting code in AUH with calls to devtool and makes other improvements aimed at making it suitable for local, interactive use by recipe maintainers.

The following changes since commit ccf93239c7def7b475fe20f8fcd91043bc59bd61:

upgradehelper.py: Layer mode do a full cleanup of poky (2017-06-05 16:14:23 -0500)

are available in the Git repository at:

git://github.com/kanavin/auh-devtool devel
https://github.com/kanavin/auh-devtool/tree/devel

Alexander Kanavin (20):
upgradehelper.py: do not error out if testimage or buildhistory are
enabled in bitbake conf, but not in AUH conf
upgradehelper.py: always run checkpkg
upgradehelper.py: do not manipulate git branches. upgradehelper.py: support updates to a new vcs revision. upgradehelper.py: add the old recipe version in pkg_ctx Add devtool support for upgrading recipes
buildhistory.py: replace cleanall with cleansstate testimage.py: do not manipulate branches
Replace references to Aníbal Limón as the maintainer. modules/recipe: remove
upgradehelper.py: remove the package ordering code utils/git.py: print current dir when git fails testimage.py: do not call into removed code
testimage.py: add extra logging for the testimage logs retrieval upgradehelper.py: fixups to the email message template upgradehelper.py: send email even if recipe upgrade failed upgradehelper.py: add all changes before committing them upgradehelper.py: when attempting to commit changes do not discard
previous errors
upgradehelper.py: when recovering from upgrade error, do not refer to
a dict entry that may not exist
upgradehelper.py: revert commits that failed to build

 README                     |   2 +-
 modules/buildhistory.py    |   2 +-
 modules/errors.py          |   7 +-
 modules/recipe/__init__.py |   0
 modules/recipe/base.py     | 724 ---------------------------------------------
 modules/recipe/git.py      |  98 ------
 modules/recipe/svn.py      |  28 --
 modules/steps.py           | 191 ++++++------
 modules/testimage.py       |  46 +--
 modules/utils/devtool.py   |  41 +++
 modules/utils/git.py       |   8 +-
 upgradehelper.py           | 254 ++++------------
 12 files changed, 208 insertions(+), 1193 deletions(-)
 delete mode 100644 modules/recipe/__init__.py
 delete mode 100644 modules/recipe/base.py
 delete mode 100644 modules/recipe/git.py
 delete mode 100644 modules/recipe/svn.py
 create mode 100644 modules/utils/devtool.py

2.15.0