SUSE/machinery — pull request #215 by aduffeck (2014-09-12 13:41:16+00:00)
Title: [Review] Request from 'aduffeck' @ 'SUSE/machinery/review_140912_migration_infrastructure'

Please review the following changes:
* 5973246 Add man page for "machinery upgrade-schema"
* 704b092 Implement "machinery upgrade-schema" command
* 9e88640 Require migrations to describe their purpose
* 410c495 Lazily load migrations from schema/migrations when needed
* e03d35e Implement the Migration base class
* a760c31 Extract the JSON loading into a separate method
* 0797904 Create a SystemDescriptionFactory module for the RSpec tests
* 7d2c8d4 Add Code Climate badge
* abd286f Merge pull request #214 from SUSE/validate_existence_of_meta_data_for_extracted_files3
* f4d5315 Add hint about file meta data validation to man page
* d08d040 Validate existence of meta data for extracted files