Add support for Email::setdefaultaddress

Adds support for Email::setdefaultaddress [#82]

Get server disk usage

• From the docs, the getdiskusage function retrieves information about all partitions on all of the drives on your server. [#81]

Manage standardized hooks

• List and edit standardized hooks [#76]

Upgrade JSON gem

• Update JSON version to 1.8 [#74]

Add support for ruby 2.1.0

Adds support for ruby 2.1.0

Generate certificate signing requests

• Generate certificate signing requests through Whostmgr [#67]

Fetch SSL vhosts

• The fetch_ssl_vhosts function retrieves information about each vhost on the server and the SSL certificates that are installed on them. [#66]

Fix Zlib::BufError

• Fix Zlib::BufError [#64]

Delete certificate data

• Remove certificate data - it's the /scripts2/delssldata implementation [#62]

Run Whostmgr scripts

• Run Whostmgr scripts [#60]