Merge branch 'release/0.2.1' into develop
Merge branch 'master' into develop
config value object checks the config keys
code cleanup
removed deprecated classes (simple changelog formatter, formatter interface)
update the readme
Merge branch 'hotfix/0.2.2' into develop
Merge branch 'master' into develop
moved the tag validator to helpers
removed the constructor and init() from the persister interface
introdcued an abstract persister class
using the abstract persister class in changelog persister
semantic generator does not provide the regex anymore
using the abstract persister class in vcs  persister
refactored the composer config helper. can be used to read and write the version
persister for composer files
code cleanup
code cleanup
new exception type
removed "vcs-tag" option from current command