MOODLE2: Updated to version 2.6.4 and updated some of the modules included.

Pending: rgrade and eoicampus
MOODLE2: Added support for Catalonia
Some structural bugs solved
New Scripts environment
MOODLE2: Improvements on Agora Scripts and advices block
MOODLE2: Repaired coursequotas querys for ORACLE
MOODLE2: Updating Marsupial
Merge branch 'TRY-moodle-2.6.4' of github.com:projectestac/agora into TRY-moodle-2.6.4
MOODLE2: Updating MUC settings to solve cache sharing
MOODLE2: Updated IW gateway login to work in 2.6
MOODLE2: Repaired Password problem in eoicampus
MOODLE2: Marsupial: Solved fatal error when importing books
Merge pull request #16 from projectestac/TRY-moodle-2.6.4

Update Moodle to version 2.6.4