unit tests expected output fix for change in object destruction order

Summary: Fi unit tests expected output

Reviewed By: mwilliams

Subscribers: hphp-diffslists, ps

Don't build test binary by default.

Enable it with `cmake -DTEST_BIN=On .`

bump version to 3.0.0

Revert "Properly invoke setter/getter for unset declared properties"

This reverts commit 2638538.

bump version to 2.4.1

bump version to 2.4.0

Revert "Update folly"

This reverts commit 4cf5378.

bump version to 2.3.2

bump version to 2.3.1

bump version for release