Ignore *.apdisk files
Update hostname and move hostmanager to config level

Updated hostname to techxlocal.com, moved some hostmanager configuration
settings to the config level from the devbox level, and removed old
commented out settings.
Fix Nginx security startup issue

Uncommented the following:
listen.owner = www-data
listen.group = www-data
listen.mode = 0660
Cleanup code

Reallocate all default variables to one section.  Improve comments.
Cleanup code.
Update server_name
Update nginx.conf

Changed user and group from vagrant to www-data.  Removed extra headers
for the dev environment.  Changed sendfile to off to fix an issue with
VirtualBox.  Updated gzip_http_version from 1.0 to 1.1.