Split out PDF tests as they require WP >= 4.7.1.
Split out PDF tests as they require WP >= 4.7.1.

miya0001/wp-cli,rodrigoprimo/wp-cli,rodrigoprimo/wp-cli,gitlost/wp-cli,miya0001/wp-cli,gitlost/wp-cli,gitlost/wp-cli,GaryJones/wp-cli,rodrigoprimo/wp-cli,2ndkauboy/wp-cli,trepmal/wp-cli,trepmal/wp-cli,aaemnnosttv/wp-cli,miya0001/wp-cli,GaryJones/wp-cli,2ndkauboy/wp-cli,trepmal/wp-cli,2ndkauboy/wp-cli,aaemnnosttv/wp-cli,GaryJones/wp-cli,aaemnnosttv/wp-cli