* libmisc/shell/shell.h: Added comments for the parameters to the
shell_init function.
* libmisc/shell/shell.c: Only set cflags if tcflags is
non-zero. This means the shell can use the current cflags settings
and the application does not need to know the baudrate etc.
* libmisc/capture/capture.h: Fix the comment.
* libmisc/capture/README: Minor copyright change.
* libmisc/capture/capture-cli.c, libmisc/capture/capture.c,
libmisc/capture/capture.h: Fixed the memory leak when lots of
tasks are being created and deleted. Improved the trigger
interface so all task type actions can be caught.