bbb-lti 0.1: Added functionality for passing IMS Global Certification test

bbb-lti/README.rst

bbb-lti/grails-app/conf/BootStrap.groovy

bbb-lti/grails-app/conf/Config.groovy

bbb-lti/grails-app/conf/DataSource.groovy

bbb-lti/grails-app/conf/UrlMappings.groovy

bbb-lti/grails-app/conf/lti.properties

bbb-lti/grails-app/conf/spring/resources.groovy

bbb-lti/grails-app/controllers/ToolController.groovy

bbb-lti/grails-app/i18n/messages.properties

bbb-lti/grails-app/i18n/messages_es.properties

bbb-lti/grails-app/i18n/messages_fr.properties

bbb-lti/grails-app/services/BigbluebuttonService.groovy

bbb-lti/grails-app/services/LtiService.groovy

bbb-lti/src/java/org/bigbluebutton/lti/Parameter.java

bbb-lti/src/java/org/bigbluebutton/lti/Role.java

bbb-lti/src/java/org/imsglobal/basiclti/Base64.java

...ti/src/java/org/imsglobal/basiclti/BasicLTIConstants.java

bbb-lti/src/java/org/imsglobal/basiclti/BasicLTIUtil.java

bbb-lti/src/java/org/imsglobal/basiclti/XMLMap.java

bbb-lti/src/java/org/imsglobal/pox/IMSPOXRequest.java