add liquidbase candidate

[rfigueroa]

closes #389

[rfigueroa]

@eddumelendez @marc0der I don't think the build failing is related to this change, but I am not sure how to fix it either

[helpermethod]

Does the liquibase tar file contain a bin folder? Otherwise this won't work out of the box.

[rfigueroa]

Does the liquibase tar file contain a bin folder? Otherwise this won't work out of the box.

it does not have a bin folder a liquidbase and liquidbase.bat script are at the root of the tar file

[marc0der]

In that case unfortunately it won't work. You could try raising this with the liquibase team.