OO-1873: reduce number of objects generated by some toString methods, optimize the normalizeFilename to prevent the creation fo 10 compiled regex patterns

OO-1761: more fix to the copy of course element within a course, copy or import of a course with a project broker element

OO-848: extended postCopy() method with source and target Course to get the copy of a whole course working

OO-848: enhance the interface of course nodes to do a post copy processing different from the import one

OO-1152: implemented export/importNode methods to add the project data to the exportprocess of the projectbroker

no-jira: implement a new OLAT module which use the Spring annotation to retrieve its setup properties, this module prevent dangerous cycle in the dependency tree which ended with module loaded several times, remove unused spring dependency

OO-990: rework importation of course node with references, implement autowiring capabilities in controllers

OO-936: implements course element "check list", enhance the flexi-table with sort, filter and export, enhance publish process with an update step, upgrade pdfbox to version 1.84

OO-911, OO-912: implements the course node triggered buttons in assessment tool, implement bulk upload for tasks with selection of a group if needed

--HG--
branch : bps