LP#1369169: Add generated README.html to the .gitignore file for OpenSRF

Signed-off-by: Ben Shum <bshum@biblio.org>
Signed-off-by: Bill Erickson <berickxx@gmail.com>
LP#1369169: Standardize styling of root linux account for README

Signed-off-by: Ben Shum <bshum@biblio.org>
Signed-off-by: Bill Erickson <berickxx@gmail.com>
LP#1369169: Remove trailing whitespace from apache2.conf

For some reason, there was a lot of trailing whitespace in this apache2.conf
file for websockets. Removing them.

Signed-off-by: Ben Shum <bshum@biblio.org>
Signed-off-by: Bill Erickson <berickxx@gmail.com>
LP#1369169: Add Apache 2.4 specific configuration file for websockets

For Apache 2.4, there were some necessary modifications for running the
websockets code properly. Similar to how we do things in Evergreen, we
added a new directory for apache_24 which contains the modified apache2.conf
file.

Signed-off-by: Ben Shum <bshum@biblio.org>
Signed-off-by: Bill Erickson <berickxx@gmail.com>
LP#1369169: Add websockets section to the OpenSRF README

Remove the separate README.websockets and move the contents into the primary
OpenSRF README document so that all steps are in one place.

Additional edits to the websockets instructions to detail differences made
between Ubuntu 14.04 Trusty and Debian / Ubuntu 12.04 Precise. More edits
may be necessary for Debian Jessie later?

Also, create a separate config file for Apache 2.4 that is copied into place
for Ubuntu Trusty and potentially other systems that will need it.

Signed-off-by: Ben Shum <bshum@biblio.org>
Signed-off-by: Bill Erickson <berickxx@gmail.com>
LP#1369169: Mention the requirement for valid SSL certificate

The apache2-websockets instance will not start without a valid SSL certificate
in /etc/apache2/ssl.  Include a mention of this in the README with the extra
stipulation that it is still possible to use a self-signed SSL certificate for
testing purposes, but this is not recommended for live installations.

Signed-off-by: Ben Shum <bshum@biblio.org>
Signed-off-by: Bill Erickson <berickxx@gmail.com>
LP#1369169: Remove hardcoded paths for OpenSRF directory

Signed-off-by: Ben Shum <bshum@biblio.org>
Signed-off-by: Bill Erickson <berickxx@gmail.com>