Split repo filter tests from command argument tests
Refactor filter parsing unit tests
Test -Ddefault filter parsing
Add support for PR inclusion/exclusion using hash symbol

Allows to include/exclude PRs using `scc merge base -I#pr1 -E#pr2'
Fix travis-merge PR inclusion to read --depends-on #pr comments
Set read-only token to allow travis-build to merge PRs
Move dependencies parsing to method for unit testing
Add unit tests for dependencies parsing
Fix _parse_dependencies call
Merge remote-tracking branch 'origin/master' into submodule_include
Add all Merge unit tests to Travis build
Merge pull request #79 from sbesson/submodule_include

Use hash symbol to include/exclude PRs