testing phpunit
removed wrong require_once
removing tests_add_filter
forgot to add wordpress tests...
test against latest WP & move install-wp-tests.sh to the end of before_script
travis.yml mods
attempt to install wp tests once again
simplify .travis.yml
attempted fix for paths
try to fix paths error (again)
forgot to cd..
use part of the underscores .travis.yml file
give this another go
one more try...
added --coverage-clover=coverage.clover
fooling around with the phpunit command
removing arguments from phpunit
one more time.
attempt to implement code climate coverage
oops!