Merge branch 'master' into develop
Improved class architecture (split Response into new subclass Payload).
Adjusted README to recent architecture changes.
Added method isBusy to Request.
Introduced new enum http methods constants.
Set version to 0.4.1.
Merge branch 'release-0.4.1'
Merge branch 'master' of https://github.com/Taig/Communicator

Conflicts:
	README.md