ADDRESSES #80: merge-filter, keep the keys in the right order.
Twig.php's test/Twig/Tests/Fixtures/tests/in.test

Too many newlines. It looks like Twig.php ignores newlines after
control-tags, just like normal PHP.
Twig.php's test/Twig/Tests/Fixtures/tests/in.test

Fixes:
{% if '' not in bar %}
TRUE
{% endif %}

String.prototype.indexOf( ) return index 0 if you look for an empty
string and in Twig.php's test case this should be false
Merge branch 'twig_supports_the_in_operator' of git://github.com/m-abs/twig.js
Bump version and rebuild