Cekit

Changed
* Cekit configuration file 'redhat' option is not ignored anymore 234

Fixed:
* tests are now correctly collected from git module repository roots 233

Added

* Cekit now enable to change it's working directory used to clone dist-git repositories via `--work-dir` command line option 226

Changed

* Cekit now push only current branch to dist-git repo 227
* Cekit now has two options for overrides: `--overrides` and `--overrides-file` 227

Concreate is renamed to Cekit

Fixed:
* existing yum repositories are not disabled any more. 187
* cekit now reports build type in OSBS 190
* stalled yum cache is properly cleared now 200

Changed:
* `com.redhat.component` label is no more generated if it doesn't exists in the image descriptor 199
* command for invoking the tool changed to `cekit` (`concreate` is still present but deprecated and will be removed) 195
* version of the tool is now persisted in `io.cekit.version` label (`org.concrt.version` label is deprecated) 195
* behave steps repository was moved to https://github.com/jboss-container-images/concreate-test-steps.git #195
* all labels and environment variables are now rendered in a sorted way 209
* implemented `--build-pull` option to always fetch latest base image 208
* if there is no checksum in artifact its always downloaded again 211
* all artifacts defined as `path` resource with a relative path are now relative against descriptor which defined them 214
* package repositories now can be handled by RPM, ODCS or download repo file directly 202


Added:
* all Red Hat related defaults are now guarded by `--redhat` flag 217
* osbs build engine now support rhpkg-stage via `--build-osbs-stage` option
* cekit now warns if the development version is used 212
* cekit now containt Buildah support 215
* cekit now has bash completion 218
* osbs build engine now support `--target` overrides via `--build-osbs-target` option 220

* com.redhat.component Label is now generated only if its not present in the image descriptor (191)

Fixed:
* Fixed merging of keys like description, name, version, release (156)
* Fixed schema validation for image schema (161)

Added:
* Added `--test-steps-url` option to fetch custom test steps definitions (125)
* Added `--build-osbs-user` option (163)
* Added `--build-osbs-nowait` option (180)
* Concreate version tool is now persisted in the image `org.concrt.version` label (152)
* Configuration file location(`~/.concreate`) can now be changed (172)

Changed:
* Descriptor got refactored to proper Descriptor classes encapsulating internal dictionary properly (167, 171)
* Overrides provided via `--overrides` option can now be inlined on the command line (175)