Owncloud

Here's a pull request with fixes from my little owncloud-installing-adventure =)
- the first commit is a fix: The site couldn't be removed, because the phpctl variable was not initialized
- Third and forth set "upload_max_filesize = 2G" and "post_max_size = 2G" in /etc/php/php.ini. I've chosen 2G, as it's the limit for 32bit arch. More info at:
https://bbs.arkos.io/t/owncloud-max-upload-size/224
http://doc.owncloud.org/server/5.0/admin_manual/configuration/configuring_big_file_upload.html