Fix to issue #76 - Use php5 for some dists with new command-line switch (#77)

* added special option --use-php5-package

* parse options and export new environment variable USE_PHP5_PACKAGE

* added choice between php5* or php7.0* packages (recommited)

* fixed php*-fpm service name and php.ini file path (recommited)

* prepare socket name for nginx to work with php5-fpm or php7.0-fpm (recommited)

* added ppa:ondrej/php5-compat repo

* added dependency ppa:ondrej/php repo and package software-properties-common

debian/resources/php.sh

@@ -10,12 +10,23 @@ cd "$(dirname "$0")"
 verbose "Configuring PHP"
 
 #update config if source is being used
-sed 's#post_max_size = .*#post_max_size = 80M#g' -i /etc/php/7.0/fpm/php.ini
-sed 's#upload_max_filesize = .*#upload_max_filesize = 80M#g' -i /etc/php/7.0/fpm/php.ini
+if [ .$USE_PHP5_PACKAGE = .true ]; then
+        verbose "version 5.x"
+        php_ini_file='/etc/php5/fpm/php.ini'
+else
+        verbose "version 7.0"
+        php_ini_file='/etc/php/7.0/fpm/php.ini'
+fi
+sed 's#post_max_size = .*#post_max_size = 80M#g' -i $php_ini_file
+sed 's#upload_max_filesize = .*#upload_max_filesize = 80M#g' -i $php_ini_file
 
 #restart php-fpm
 #systemd
-/bin/systemctl restart php7.0-fpm
+if [ .$USE_PHP5_PACKAGE = .true ]; then
+        systemctl restart php5-fpm
+else
+        systemctl restart php7.0-fpm
+fi
 
 #init.d
 #/usr/sbin/service php7.0-fpm restart