Fix blade directives on Laravel 5.3

[yajra]

On Laravel 5.3, parenthesis on expressions are automatically stripped.

laravel/framework#14986
https://laravel.com/docs/5.3/upgrade

[yajra]

BTW, this is a breaking change so you might need to bump a major version for Laravel 5.3? Thanks!

[arrilot]

Could we detect Laravel version and register directives depending on it to avoid brealing changes?
We need to support L5.1 LTS as well and I want to avoidcreating and maintaining separate branches

[pherum]

@arrilot This fix should work on all versions.
it was originally incorrectly was identified.
Output was about it

...->run'widget'

and need just the same code like this

...->run('widget')

alternatively, you can make a new branch

[arrilot]

I've merged and added a check myself.
Thanks a lot