Merge branch 'release/1.0.0'

* release/1.0.0:
  Adding CHANGELOG.md and changing information about version in README.md
  File operations on version file separated to dedicated class
  Saving version information in different files, based on maczukin_version_tools.file property
  Added copyright field to version informations
  Renamed Maczukin\VersionsToolBundle\Tool\Version to Maczukin\VersionsToolBundle\Tool\VersionTool
  Change in README.md
  Changes in TODO list
  github - packagist integration test
  Initial code (migrated from old alpha version and repo)
Replaced system() with exec() when determining commit information
Updating CHANGELOG
Merge branch 'hotfix/1.0.1' into develop

* hotfix/1.0.1:
  Updating CHANGELOG
  Replaced system() with exec() when determining commit information