Trying to fix the Wordpress sketch for the new framework.
set_hostname: add Debian support
Cleaned up and re-organized the materials, added a few more examples.  Aleksey.
Merge pull request #206 from atsaloli/master

Clean up and reorganize the verticalsysadmin_training_materials, add more examples.
Merge pull request #204 from tzz/estenberg/set_hostname

set_hostname: add Debian support
Fixed library directories.
Fixed title.
Implemented ability to edit existing configurations by specifying sketch#n in the configure command.
Merge pull request #209 from zzamboni/edit_configs

Implemented ability to edit existing configurations using the configure command.
Added missing promise handles and comments.
Fixed typo.
Merge pull request #208 from tzz/master

VCS::vcs_mirror fixes: nowipe still wiping; create and expect parent_dir
Merge pull request #212 from tzz/master

minor vcs_mirror change to fetch better
Merge pull request #213 from tzz/master

improve error message in cf-sketch (redmine#2048)
Merge pull request #214 from tzz/master

small fixes
cf-sketch: fix list and search commands so they do not parse sketches unnecessarily
cf-sketch: minor fix for load_json rename to load
Merge pull request #217 from tzz/master

load_json missing function fix
Merge pull request #216 from tzz/issues/207

cf-sketch: fix list and search commands so they do not parse sketches unnecessarily
Fix repo_clear_cache to clear all cached versions of the repo.