Merge pull request #3 from nadavkav/patch-1

Minor RTL fixes to the CSS rules
Add the RTL support. Thanks to nadavkav
Correction on the tab content to allow to put custom HTML like object tag, etc. => change the settype from TYPE_CLEAN to TYPE_RAW
Changes on the logs
Updated for Moodle 2.5

-Updated deprecated functions
-Added set_types to elimate silent dev warnings
-Updated version
Added missing upgrade savepoint
Fixed #5 : Patch the backup/restore system to allow conversion of links during the restore
+ Patch problem on filter The format of the text wasn't good so filters like youtube filters crashed.
add support for restoring moodle 1.9 mod/tab backups