Update install script to speed up travis

* do not clone again the repository anymore
* do not require to choose the git branch
* should work properly with pull requests

.travis.yml

@@ -31,7 +31,7 @@ script:
   - sudo bash -c 'echo -e "[user]\n\tname = abc\n\temail = root@localhost.com" > /home/travis/.gitconfig'
   - sudo echo "Travis Banch = $TRAVIS_BRANCH"
   - sudo apt-get install -qq --force-yes git python3-setuptools python3-dev python3-apt ccze tree
-  - sudo bash install -b $TRAVIS_BRANCH --travis
+  - sudo bash install --travis
   - sudo wo --help && sudo wo stack install && sudo wo stack install --proftpd
   - sudo wo site create html.net --html && sudo wo site create php.com --php && sudo wo site create mysql.com --mysql && sudo wo site create proxy.com --proxy=127.0.0.1:3000
   - sudo wo site create wp1.com --wp && sudo wo site create wpsc1.net --wpsc && sudo wo site create wpfc1.com --wpfc

install

@@ -429,6 +429,16 @@ wo_install() {
 
 }
 
+# Clone Github repository if it doesn't exist
+wo_install_travis() {
+
+    if [ -f "$HOME/.gitconfig" ]; then
+        # install and redirect log to not print python package install
+        python3 setup.py install >> $wo_install_log 2>&1
+    fi
+
+}
+
 wo_upgrade_nginx() {
 
     {
@@ -780,7 +790,11 @@ else
             wo_lib_echo "Installing wo dependencies " | tee -ai $wo_install_log
             wo_install_dep | tee -ai $wo_install_log
             wo_lib_echo "Installing WordOps " | tee -ai $wo_install_log
-            wo_install | tee -ai $wo_install_log
+            if [ "$wo_travis" = "y" ]; then
+                wo_install_travis | tee -ai $wo_install_log
+            else
+                wo_install | tee -ai $wo_install_log
+            fi
             wo_lib_echo "Applying Kernel tweaks" | tee -ai $wo_install_log
             wo_tweak_kernel | tee -ai $wo_install_log
             wo_lib_echo "Installing acme.sh" | tee -ai $wo_install_log