⚠️ Drop PHP < 5.6 support (it's about time..)
Other changes are related to the way we use Tidy (:kissing_closed_eyes: @Kdecherf):
- tidy: use
tidy_repair_string instead of tidy_parse_string+tidy_clean_repair #42
Other small changes:
- tests: fix possible typo in
testPostFilters() leading to failure #36
- Composer bump, php-cs bump to v2, travis update #43
- Update path to coveralls bin #44
- Update fixer rules #45
