bashdb 3.1-0.09 release (for bash versions 3.2 and 3.1)

Changes in this release are:

set/show trace-commands were added to make samilar to those commands in gdb 6.6

show commands now allows for a starting number and +; again the same as gdb.

variable and tilde expansion now occurs in cd command. Note that gdb does tilde expansion but not variable expansion like $HOME.

Add linetrace delay debugger command.

Make FreeBSD tests work, cygwin signals are working so test are run there

A number of small documentation updates have been made.

Emacs code was improved.

Some installation bugs have been fixed.

The debugged script file name was sometimes incorrectly reported when debugged script set IFS