0.2.0.0

* Adding test suite. (PR #46)

* Adding TravisCI script. (PR #46)

* Not falling to *bottom* when GraphViz does not exists on the host system. (PR #45)

* Supporting to build with *stack* and/or *cabal*. (PR #43, PR #18)

* Adding optional -e command-line argument to determine the type of edges
  between nodes/tables. (PR #13)

* Allow spaces in table identifiers, quoted with backticks. (PR #9)

0.1.3.0