BufferManager: replace Buffer* get_buffer with Buffer& get_buffer
add a kak_selections env var, which contains all selections separated by a comma
add WinDisplay hook
eval,exec: -restore-selections become -draft, and restore the buffer as well
setb can take a -buffer argument
kakrc: avoid bash features
BufferManager notify the ClientManager when a buffer dies
use canonicalized filenames for buffers
show informations on uncaught std::exceptions
cpp.kak: alt supports an alt_dirs options for directories to search
open_fifo delete existing buffer if needed
{grep,make}.kak: use edit! instead of trying to delete buffer
update TODO