minor #318 Remove support for HHVM (fabpot)
minor #318 Remove support for HHVM (fabpot)

This PR was merged into the 4.0-dev branch.

Discussion
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Remove support for HHVM

Tests do not pass anyway on HHVM.

Commits
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c4ee12a removed support for HHVM

FriendsOfPHP/Sami,TiS/Sami,FriendsOfPHP/Sami,TiS/Sami