mingw-w64-ipython updates and dependencies (#4353)

ipython2-python - 5.3.0 - run ipython with winpty in python-script, ix shebang in pythong so it's tied to user's setup, add jedi and pexpect as dependency
python3-ipython - 6.5.0 - tun ipython with winpty in python-script, fix shebang in pythong so it's tied to user's setup, add jedi and pexpect as dependency
python-pexpect - 4.6.0 - new package required for ipython and probably other stuff
python-jedi - 0.12.1 - new package - required for ipython\
python-paros - 0.3.1 - new package - equired for jedi

mingw-w64-python2-ipython/ipython3-i686.install

@@ -0,0 +1,14 @@
+post_install() {
+  cd mingw32
+  local _prefix=$(pwd -W)
+  cd -
+  local _it
+  for _it in iptest iptest3 ipython ipython3; do
+    sed -e "s|/mingw32|${_prefix}|g" \
+        -i mingw32/bin/${_it}
+  done
+}
+
+post_upgrade() {
+  post_install
+}