New devtool finish subcommand

This patchset adds "devtool finish" that provides a way to easily finish and save your changes to a real layer. Along the way I also fixed some annoyances and bugs in the way "devtool update-recipe" works, since devtool finish makes use of that code.

The following changes since commit da7a2c7b00b40a8759dbe9f4ab6df3e337e3d6b6:

useradd-staticids: use map() instead of imap() (2016-07-12 23:11:57 +0100)

are available in the git repository at:

git://git.openembedded.org/openembedded-core-contrib paule/devtool19-oe
http://cgit.openembedded.org/cgit.cgi/openembedded-core-contrib/log/?h=paule/devtool19-oe

Paul Eggleton (7):
devtool: update-recipe: find and use existing files directories
devtool: update-recipe: don't copy local files that haven't changed lib/oe/recipeutils: fix a few issues in find_layerdir()
devtool: reset: refactor to allow calling separately
devtool: update-recipe: refactor to allow calling separately
devtool: upgrade: record original recipe files
devtool: add finish subcommand

 meta/lib/oe/recipeutils.py        |  67 ++++++++++-
 meta/lib/oeqa/selftest/devtool.py | 157 +++++++++++++++++++++++++-
 scripts/lib/devtool/standard.py   | 231 +++++++++++++++++++++++++++++---------
 scripts/lib/devtool/upgrade.py    |  16 ++-
 4 files changed, 410 insertions(+), 61 deletions(-)

2.5.5