Fourth Alpha Release

• Introduce Builder support for Collections i.e. filter, find, first, last, sort, map
• Support operations for Collections in Expressions i.e collection.size(), collection.isEmpty()

Third Alpha Release

• Visualise Workflow execution in Text
• Visualise Workflow model in Text

Second Alpha Release

• Minise verbosity for Task Activity
• Integrate with PSR/3 Logger
• Record execution path

First alpha release

Merge pull request #23 from softius/custom-exceptions

Custom exceptions