Only update if necessary

src/freedombone-meshweb

@@ -16,6 +16,7 @@ ZERONET_PORT=15441
 TRACKER_PORT=6969
 MY_USERNAME=$USER
 ZERONET_DIR=/home/$MY_USERNAME/zeronet
+UPDATED="no"
 
 function install_zeronet_blog {
     if [ ! -f /home/$MY_USERNAME/README ]; then
@@ -192,6 +193,11 @@ function install_web_server {
         return
     fi
 
+    if [[ $UPDATED == "no" ]]; then
+        sudo apt-get update
+        UPDATED="yes"
+    fi
+
     sudo apt-get -y remove --purge apache2
     if [ -d /etc/apache2 ]; then
         sudo rm -rf /etc/apache2
@@ -209,6 +215,12 @@ function install_zeronet {
     if [ -d $ZERONET_DIR ]; then
         return
     fi
+
+    if [[ $UPDATED == "no" ]]; then
+        sudo apt-get update
+        UPDATED="yes"
+    fi
+
     sudo apt-get -y install python python-msgpack python-gevent
     sudo apt-get -y install python-pip bittornado
     sudo pip install msgpack-python --upgrade
@@ -233,7 +245,6 @@ fi
 
 if [[ $SERVER_INSTALLATION == "no" ]]; then
     if [ ! -f /tmp/meshtype ]; then
-        sudo apt-get update
         install_web_server
         install_zeronet
         install_zeronet_blog