[TEMP] v1.5.4 re-released with more Quizlet patches

• 8dc6fd4
• ee04f12
• 7928616

Named as such (v1.5.4.3) to satisfy composer.json requirements in other repos.

[TEMP] v1.5.4 re-released with Quizlet patches

• 8dc6fd4
• ee04f12

Named as such (v1.5.4.2) to satisfy composer.json requirements in other repos.

v1.5.4 re-released with Quizlet patch

v1.5.4 but with 8dc6fd4 so hhvm/hack-codegen's dependency requirements are met.