* Improve unicode text edition

- support multi column chars

- right-to-left, bidirectional text

* improve highlighters

- folding support

* markup support in info boxes

* improve insert completion

- Detect when the following text is matching the inserted completion

- Support multiple completion points

(1.1@0:comp1:comp2:comp3:1.5@0:comp1:comp2:comp3)

* investigate 'kakdiff'

* Tree based undo

* multiple parameters support for normal mode commands ?

- 10,20g -> goto line 10, column 20

- 1,2,3<a-space> remove selections 1, 2 and 3

* Improve self-documenting

- Generate documentation from Kakoune source

. Write asciidoc from internal documentation

. make doc compiles kakoune, and run doc generation:

+./kak -help commands > ../doc/commands.asciidoc+

with README.asciidoc including commands ?

* Comments and strings should be more integrated than just highlighting, matching chars

for example should be strings and comments aware (should they ?)

* change command parsing to be more shell like

(support -option="value with spaces" instead of requiring "-option=value with spaces")