new dep for ipython

ShellB3/shallbethree.sh

@@ -3999,6 +3999,7 @@ mk_ipython() {
   #bin/easy_install-${PYFSVER} -Z --no-deps src/optional/readline*z || oops 'readline did not install'
   pip_install src/optional/zope.interface-*z || oops 'zope.interface did not install'
   pip_install src/optional/DateTime*zip || oops 'DateTime did not install'
+  pip_install src/optional/prompt_toolkit-*z || oops "prompt_toolkit did not install"
   # bin/python${PYFSVER} -c 'from IPython.external import mathjax; mathjax.install_mathjax()' || oops 'mathjax installation failed'
   isDarwin && make_frameworklinks
   # workaround for http://bugs.python.org/issue6059 due to glibc problem on RHEL6, segfault in uuid4