Add a transaction function to sample.
Use atoms instead of refs to cover failing dosyncs
Merge pull request #11 from JacekLach/use-atoms-not-refs

Use atoms instead of refs
Prepare release cloverage 1.0.2
Bump cloverage to 1.0.3-SNAPSHOT
Test demonstrating the issue.
Un-lazify sequences after propagating line numbers

Fixes #14
Merge pull request #14 from JacekLach/support-empty-list

Empty list support