Merge branch 'release/0.1.11' into develop
Skip binding execution loop on HHVM

See facebook/hhvm#1203
See #81
Install a tagged version rather than dev-master
Update symfony/console version dependency range.

See #86
Fix ls fatal error with non-object targets.

Avoid fatal error when trying to list constants, properties and methods of non-class and non-object targets.

Fixes #80
Version bump to v0.1.12
Merge branch 'release/0.1.12'