V3 : Paste System

[garry.yao]

This is an umbrella ticket. It points to several to tickets that must be completed to bring the new pasting system of CKEditor.
The new pasting features should be conducted within a dedicated branch.

Paste Auto Detect

#1427

Autodetect clipboard contents on Paste

Pasting Processor

#4395

Use htmldataprocessor to refactor pasting processor

#3828

Paste from Word - bullets not reproduced

Pasting from MS-WORD

#4423

Proper list handling including bullet and number lists from MS-Word

#4427

Proper image handling from MS-Word

#4441

Support for copying table from MS-Word

#4444

Adapting formattings from MS-Word to editor's style system

#4470

Deprecate the dialog of 'Paste from Word'

Pasting as Pain Text

#4469

Enhance 'Paste As Text'

[garry.yao]

Tidied up the description a bit.

[garry.yao]

Close the umbrella ticket since all sub tickets get fixed.