fix keymap - New key symbol for "enter".
Merge pull request #14 from 7histle/master

fix keymap - New key symbol for "enter".
  Added function for looking up a nested-table.

  This is pretty specific to our keymap.

  This grossly simplifies the logic for the keyboard lookup.
  Changed order of keyboard lookups.

  First lookup current-mode, then the global.  This makes more
 logical sense.
  Removed get_global/set_global.

  `get_global` was unused, and `set_global` was only used once.
  Fixed typo in comment.
  New test script, for working with sub-tables.
  Added prompt_yn().

  This will be used for " do you really want to send?", etc.
  Remap some keys.

  Now "Enter" works, and the arrow keys map to j/k.
  We need a defined RCfile.
  We clean any ./core file present on `make clean`.

  This is for neatness.
  Ignore the generated table file.
  When running the clean target descend into ./test too.

  This ensures we have no stale files.
  refresh_display is bound to Ctrl-r.

  This is useful when there are still some display glitches.
  Correctly get the mode before using it.
  Added `current_maildirs`.

  We use this in the awesome function dump_unread, in the lua
 configuration file.

  TODO: Document this function.
  TODO: Select maildir by name.
  TODO: Get current maildir by name.
Avoid crash on Issue #15 (lumail crash on international keys).
Merge branch 'master' of https://github.com/skx/lumail
  Show messsage if there are no maildirs.

  This is better than showing a single highlighted row.
  Don't wrap when moving to the next message.