Change Chat Window branding

This is where the branding has been updated to SpeakServe.
Merge branch 'github.com-bigbluebutton/master'

Conflicts:
	bigbluebutton-web/grails-app/conf/bigbluebutton.properties
Merge branch 'master-bigbluebutton'
Update config.xml.template
Update vars.xml
Update to include SpeakServe specific settings

This is based on updates provided by Richard.
Update to include SpeakServe specific settings

This is updated based on information provided by Richard.
Update to include SpeakServe specific settings

Based on information provided by Richard.
update to include SpeakServe specific settings
Updated client application locales :
- Copyright content contains "SpeakServe Ltd."
- The application name in messages and titles is now "WebMeeting"
Updated help URL and application name in configuration files.
Client application uses Speakserve Flex skin.
Updated application name is UserService class.
Updated client application icons and favicon.
Added new Speakserve.css Flex skin.
Added environement install shell script.
Added client install and compiling shell script.
Added WebMeeting repository initialisation.
added "-y" parameter to apt-get install script : the script install without prompting for install confirmation.
Added default IP address to install_env.