Had to create dummy init functions at some places since the owner of a package
is the last layer that defines the init function of a package. And a package
can be installed only if it has an owner.
Change the key bindings:
- Remove SPC m p
- Better support for double leader keys for preview (,, and M-m M-m)
- Graph indentation on SPC m =
Add support for smartparens when it is used for {} pair.
Update the doc.