[VuFind-Tech] Short array syntax

[Demian K. <dem...@vi...>]

As discussed on yesterday's developers call, I have just updated the VuFind master code to use the new, shorter PHP array syntax (using php-cs-fixer):

['key' => 'value']

instead of

array('key' => 'value')

Hopefully this will make code slightly more concise and readable. Please let me know if you run into any problems.

- Demian