Added the installation of curl to the .homeinstall script

Created by: anaqreon

After reporting issue https://github.com/redmatrix/hubzilla/issues/280, I modified the .homeinstall script to add the installation of curl. I successfully installed a new hub on a fresh virtual private server using the following steps:

1. Created a new DigitalOcean droplet (Debian 8.3 x64 / 512 MB Memory / 20 GB Disk / NYC3)
2. Assigned the hub domain name to the new droplet IP address using RackSpace DNS services
3. Logged on to the new server and executed the following commands:
   1. apt-get install git
   2. mkdir -p /var/www/html
   3. cd /var/www/html
   4. git clone https://github.com/redmatrix/hubzilla.git .
   5. nano .homeinstall/hubzilla-config.txt
   6. cd .homeinstall/
   7. ./hubzilla-setup.sh
   8. sed -i "s/^upload_max_filesize =.*/upload_max_filesize = 100M/g" /etc/php5/apache2/php.ini
   9. sed -i "s/^post_max_size =.*/post_max_size = 100M/g" /etc/php5/apache2/php.ini
   10. service apache2 reload
4. Opened the hub webpage in a browser and completed the steps to finish installation