Run alternatives pip -> pip-python

Checks to see if python-pip is installed and installs
an alternatives link at /usr/bin/pip

Change-Id: I858ac2597d3cacc79144a8b345faf6a2f7dee26e

elements/fedora/bin/install-packages

@@ -18,4 +18,8 @@
 set -e
 
 yum -y install $(map-packages "$@")
-
+for pkg in "$@"; do
+  if [[ "$pkg" == "python-pip" ]] ; then
+    alternatives --install /usr/bin/pip pip /usr/bin/pip-python 10
+  fi
+done