v4.108.0: move to built-in; support and require HHVM 4.108
The HSL is built-in to HHVM 4.108; prior releases of the HSL package are unusable, as they lead to duplicate definitions.
This release:
- removes all definitions of the HSL
- supports and requires HHVM 4.108 or above
- continues to include all unit tests for the HSL
If your project requires HHVM 4.108 or above, we recommend removing the HSL dependency.
If your project does not require HHVM 4.108 or above, this release should be used by composer to satisfy the dependency.