Update jimtcl to version 0.80. Add a workaround in Makefile.am to allow 'make distcheck' with the new jimtcl. A fix is already merged upstream but will be part of the future release 0.81 of jimtcl. Change-Id: I1cebfb9c17179114960dc771e0b31836b4b9b058 Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com> Reviewed-on: http://openocd.zylin.com/5949 Tested-by: jenkinsjim