Implemented and tested 'isEnded' assertion for process instances. Removed 'isFinished' assertion.
Implemented and tested 'isStarted' assertion for process instances.
Implemented, tested and documented isEnded assertion for process instances.
Implemented, tested and documented isSuspended assertion for process instances.
Implemented, tested and documented 'isActive' assertion for process instances.
Added testcases for retrieving a chained TaskAssert from ProcessInstanceAssert.
Factored out repeating code for failing assertions tests.
Adapted .gitignore