Zend\Navigation currently uses only one text domain for translating page labels. This commit adds the new option key "textdomain" to Navigation and its (translatable) view helpers. If the option is present, it is used during translation. If the key is not present, the old behavior is applied.
Fixed method names
Aligned method naming to zf style
Merge pull request #4979 from shadowdani/nav-textdomain

Add multiple translation text domains to Zend\Navigation
[#4979] CS fixes

- EOF ending
Merge branch 'feature/4979' into develop

Close #4979