Remove php 5.5 syntax

Merge branch 'teohhanhui-patch-1'

Merge branch 'GabrielCW-fix-typos'

Rename en.xliff to prevent errors

Merge branch 'tyx-fix/should-not-exist-on-null-values' into behat-2.x

Merge branch 'EmmanuelVella-rest-params'

v2.0

v1.4

v1.3

v1.2