Problem:    When a key code is not set get a confusing error message.
Solution:   Change the error message to say the key code is not set.

Problem:    Can't use the "+ register like "* for yank and put.
Solution:   Add "unnamedplus" to the 'clipboard' option. (Ivan Krasilnikov)

Problem:    Can't complete file names while ignoring case.
Solution:   Add 'wildignorecase'.

Problem:    Cannot store Dict and List in viminfo file.
Solution:   Add support for this. (Christian Brabandt)

contains a character that would become double width.

concealed or not.
Rename 'conc' to 'cole' as the short name for 'conceallevel'.

Documentation updates.

highlighting.