Upgrade Nikola dependencies to the newest ones (#104)

.travis.yml

@@ -10,8 +10,6 @@ matrix:
     include:
         - os: osx
           osx_image: xcode8.2
-        - os: linux
-          env: DETECTED_OS=fedora:24      DOCKER_IMAGE=cyplo/fedora24_base
         - os: linux
           env: DETECTED_OS=fedora:25      DOCKER_IMAGE=cyplo/fedora25_base
         - os: linux

common/configure_fresh_system.sh

@@ -207,10 +207,10 @@ if [[ -z $NOPYTHON3 ]]; then
         PIP=pip
     fi
     echo "Upgrading pip"
-    $SUDO $PIP install --upgrade pip
-    $SUDO $PIP install packaging
+    $SUDO $PIP install --upgrade pip setuptools
+    $SUDO $PIP install --upgrade packaging
     echo "Installing Nikola"
-    $SUDO $PIP install pygments-style-solarized ws4py watchdog webassets Nikola
+    $SUDO $PIP install --upgrade pygments-style-solarized ws4py watchdog webassets Nikola
 fi
 
 if [[ -z $USER ]]; then