Version bump to 4.3.0

Also removes php 5.3 from travis as it's no longer a supported WP 
version.

Merge pull request wp-bootstrap#400 from wp-bootstrap/fix/issue/395/t…

…ypo-in-function-name

Correct typo in function name

Version bump for bugfix release - 3.1.1

Add $depth param to a filter and prevent a possible error message sit…

…uation when no menu is set to the location.

Add `dropdown-item-text` linkmod support

Merge pull request wp-bootstrap#347 from pattonwebz/v4-dev

Update to 4.0.2

Merge pull request wp-bootstrap#348 from pattonwebz/v3-branch

Add an autoload statement for the composor package

Merge branch 'master' of github.com:twittem/wp-bootstrap-navwalker

Merge pull request wp-bootstrap#339 from wp-bootstrap/v4

Make v4 branch the new master

Merge pull request wp-bootstrap#318 from pattonwebz/update/change-com…

…poser-package-type

Update/change composer package type