Merge branch 'release/2.6.3'
Merge branch 'release/2.6.4'
Merge branch 'release/2.6.5'
Merge branch 'release/2.6.6'
Merge branch 'release/2.6.7'
Merge branch 'release/2.6.8'
Merge branch 'release/2.6.9'
Merge branch 'release/2.7.0'
Merge branch 'release/2.7.1'
Merge branch 'release/2.7.2'
Merge branch 'release/2.7.3'
Merge branch 'release/2.7.4'
Merge branch 'release/2.7.5'
Merge branch 'release/2.7.6'
Merge branch 'release/2.7.7'
Added some extra Ogone documentation.
WordPress Coding Standards optimization.
Added an listener for Ogone.