Commit message

Each commit message should start with prefix which contains hash and issue number, for example "#132"
Commits which doesn't affect project build status like updating docs files "README.md" doesn't have to build by Travis CI. To do that commit message should contain sufix "[skip travis]"

Branch naming convention

Try to name your branch based on type of issue related to it, for example:

Feature - Prefix "feature/", issue number and some short description, for example:

Branch name for feature related to integration with Travis CI and with number 113. "feature/113_travis_integration"
Bugfix - Prefix "bugfix/", issue number and some short description, for example:

Branch name for bugfix related to NullPointer exception and with number 227. "bugfix/227_nullpointer_exception"