If pane content is restored and no default-command is set, restore.sh
falls back to default-shell, which tmux sets automatically and calls as
a login shell.

In pane_creation_command() we need to make sure to call default-shell as a login shell.
As tmux does. But take care not to call default-command as a login shell.

And make the hook calling simpler at the call site.

  Also make @resurrect-save-bash-history an alias to the new option.
Signed-off-by: Mohammad Alsaleh <CE.Mohammad.AlSaleh@gmail.com>

Signed-off-by: Mohammad Alsaleh <CE.Mohammad.AlSaleh@gmail.com>

This reverts commit 0a6f9078.

as suggested in https://github.com/tmux-plugins/tmux-resurrect/issues/141

This feature is controlled by the '@resurrect-capture-pane-contents'
option.
Currently only the visible area of each pane is saved and restored.

It's faster now.

The problem is that tmux list-window shows only the current pane layout
if a pane is maximized. This is a bug in tmux. In order to avoid this
bug we unzoom the window when saving and zoom in again after saving.
This implies that the Z flag is no longer set in list-windows, and so it
can't be used when restoring. Instead we use the Z flag of the panes
(which still have it) to restore the zoom.

This does not yet have flag to turn the feature off.

Fixes #36

Close #25

Closes #24