* Added support for HMAC SHA256 encryption

* Added back accidentally deleted line

* Moved oauth library to seperate repository

* Fixed weird indentation in ToolController.groovy

[x]Views now are localized
[x]Added sp and fr translations
[x]Updated icons. icon.ico(16x16) icon.gif(24x24)
[x]Parameter custom_bbb_record is now custom_bbb_recording
[x]Removed not required files
[x]Changed behavior of extended mode. Users join directly if the recording is mot enabled for the launch.

I'm re-applying this code after reviewing the 0.1.1 version of bbb-lti. From my testing, an LTI's custom welcome message is currently being ignored.

As contributed by Brandon Kish

When configuring an LTI consumer, pass [custom_]record=true to indicate
whether the session should be recorded.

I found that Blackboard prefers to send the Instructor role within the
"urn:lti:role:ims/lis/" URN. The support was already here, I just
extended the detected roles. Hooray for Blackboard support in
BigBlueButton!

Signed-off-by: jfederico <jesus@123it.ca>

Signed-off-by: jfederico <jesus@123it.ca>

Signed-off-by: jfederico <jesus@123it.ca>

Signed-off-by: jfederico <jesus@123it.ca>

Signed-off-by: jfederico <jesus@123it.ca>

Signed-off-by: jfederico <jesus@123it.ca>

Signed-off-by: jfederico <jesus@123it.ca>

Signed-off-by: jfederico <jesus@123it.ca>

Users can join BBB meetings using LTI links. All users login as moderators though
Signed-off-by: jfederico <jesus@123it.ca>

Signed-off-by: jfederico <jesus@123it.ca>