[TASK] Remove outdated overview graphic
[TASK] Move code quality graphs to bottom
[TASK] Add bitdeli
[TASK] Refactor class inheritance
[BUGFIX] Use property not local variable
[TASK] Use ViewHelperUtility method
[TASK] Add switch for merging keys
Merge pull request #449 from NamelessCoder/readme

[TASK] Cleanups in README - and bitdeli
Merge pull request #450 from bjo3rnf/iterator

[TASK] Refactor class inheritance