Fix executable bit on run.sh and other jboss scripts

None of the jboss script are executable, which will confuse some people who download the application.

localhost% pwd
/Users/fermigier/apps/nuxeo-ep-5.2-SNAPSHOT/bin
localhost% ls -l *.sh
rw-rr- 1 fermigier fermigier 3535 May 11 19:04 classpath.sh
rw-rr- 1 fermigier fermigier 8808 May 11 19:04 jboss_init_hpux.sh
rw-rr- 1 fermigier fermigier 3639 May 11 19:04 jboss_init_redhat.sh
rw-rr- 1 fermigier fermigier 4671 May 11 19:04 jboss_init_suse.sh
rw-rr- 1 fermigier fermigier 918 May 11 19:04 probe.sh
rw-rr- 1 fermigier fermigier 7107 May 11 19:04 run.sh
rw-rr- 1 fermigier fermigier 1903 May 11 19:04 shutdown.sh
rw-rr- 1 fermigier fermigier 2348 May 11 19:04 twiddle.sh
rw-rr- 1 fermigier fermigier 4207 May 11 19:04 wsconsume.sh
rw-rr- 1 fermigier fermigier 4557 May 11 19:04 wsprovide.sh
rw-rr- 1 fermigier fermigier 2930 May 11 19:04 wsrunclient.sh
rw-rr- 1 fermigier fermigier 3315 May 11 19:04 wstools.sh

This is a regression over the old packaging.