Fix front-end crash when no twig collector exists (php-debugbar#312)

If the twig collector wasn’t used on a particular request, the twig
widget crashes the client.  Fix the bug by assuming a default array of
zero templates.

(For example, an AJAX call that didn’t construct a TwigCollector would
trigger this crash.)

Update composer.json

Update composer.json

Merge pull request php-debugbar#242 from maximebf/feat-dynamic-padding

Use original padding in calculation

Bump version, update composer

Merge pull request php-debugbar#230 from snapshotpl/patch-1

Middleware and PSR-7 support

Merge pull request php-debugbar#196 from hieblmedia/patch-1

Show the real parameter name for prepared queries.

Update jQuery to 1.11.2

Merge pull request php-debugbar#186 from arnaudroulee/master

Fix IE resize

Merge pull request php-debugbar#182 from alprs/feature/disable-vendor…

…-asset

Allow disabling of specific vendor assets