Version 0.9.1

Version 0.9.0

Version 0.8.0

Fix PHP53

Update roadmap

Merge pull request phpro#75 from toonjanssens/phpro#49

Extract tasks into seperate files (Fixes phpro#49)

Bump application version

Merge pull request phpro#56 from adam-paterson/cleanup

Remove unused declarations

Fix PHP7 issues with phpspec for Travis.

Merge pull request phpro#48 from veewee/feature-progressbar

Introducing Events, Progress and a run command.
Fixes phpro#46, phpro#33, phpro#20, phpro#42.