check if the metadata passed in the create call is empty; raise an exception if the private key isn't found on the recording server; updated the deploy script using the ideas implemented on chef

only runs the decrypt script if the get_recordings_url is defined and not empty; removed the logs from the part before checking for the existence of archived/<meeting_id>.done

the previous definition was making nginx load from /var/bigbluebutton/published the presentation mconf-default.pdf just because it starts with /mconf

changed the public key metadata name to mconflb-rec-server-key to be compatible with the rest of the service

improved the deploy script so if no parameters are passed, it will act as a recording server; if a text parameter is passed containing "mconf", the encryptor will be deployed

changed the behavior of BigBlueButton.execute so the caller can check if the execution was successfully or not

Merge branch 'encrypted-recording' of https://github.com/mconf/bigbluebutton into encrypted-recording

Conflicts:
	record-and-playback/mconf/scripts/publish/mconf.rb

many improvements on the process and published of the encrypted format; if a public key isn't provided as metadata, the key is passed in plain text using a .txt file, otherwise a .enc file is used to store the encrypted key; fixed identation; removing all files except the published ones; handling also the files stored on /var/bigbluebutton/{meetingId} - they are now included into the zip file and will be restored on the recording server

adding a patch waiting to be pulled on BigBlueButton master (https://github.com/bigbluebutton/bigbluebutton/pull/77)

copied the entire record-and-playback module of BigBlueButton master (pre 0.81) to the v0.8 tag; the only file merged is record-and-playback/core/lib/recordandplayback.rb

 - update version to 0.8

added missing german locale strings

Fix Latvian language file

Assigned a default blank password for mobile connection, as suggested by Felipe in http://code.google.com/p/bigbluebutton/issues/detail?id=1183