Fixed headline in README
Added changelog to README
Updated dependencies
Merge branch 'release/v1.4.0' into develop

* release/v1.4.0:
  Updated dependencies
  Added changelog to README
Merge branch 'develop' of github.com:braincrafted/bootstrap-bundle into develop

* 'develop' of github.com:braincrafted/bootstrap-bundle:
  Close button can be added to flash messages
  Added flash messages helper
  Improved code quality tools and tests
  Fixed headline in README

Conflicts:
	composer.lock