change langstrings
multiple competencies assignment and taxonomy selection added for custom example upload
changed learningagenda
improvements in import functions

- related to descriptors, unused data is deleted
- bug in block_exacomp_xml_insert_schooltyp, in some case record also
inserted in subject table
remove debugging lines
learningagenda changed
learnagenda changed
show descriptors with relation to activity

even if subject of descriptor is not selectd
comp grid visible for students
no automatic installation of xml from github server on block installation
hide niveau filter there is a bug
explaination if competencegrid empty
hide niveau filter 2
catalanian language strings updated
lis like filename for custom example upload
lis: reviews on topics, effect on comp grid
remove alternative data stringfile out of langfolger because of amos error
new save block_exacompdescractiv_mm handling
update to readme
comp grid and user topics update