Collective-ckeditor

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- Update to CKeditor 4.5.6
[gotcha]

- Add some robot tests
[spreverde, gotcha]

- Add defaultTableWidth option to control panel to set the default table width in the table dialog window.

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- Fix javascript order though GS.
[montypie]

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- Add image2 plugin and its dependencies.
[gotcha]

- Add image2_alignClasses and image2_captionedClass setting to setup
image2 plugin.
[gotcha]

- Updated to CKeditor 4.4.1.
[gotcha]

- Add removePlugins option to control panel to allow to deactivate plugins.
[gotcha]

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- Show actual url in link dialog besides resolveuid.
[gotcha]

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- Fix upgrade steps to avoid overwriting custom configuration.
[gotcha]

- Updated to CKeditor 4.3.4
[gotcha]

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- Expand setup of Advanced Content filter (ACF).
[spereverde, gotcha]