MDL-46235 ddl: add support for large number of text fields in one database table
MDL-47572 libraries: modify unittest to avoid random timing fail

Thanks to Nigel Cunningham
MDL-47583 tinymce_managefiles: correctly decode filename
MDL-44548 mod_scorm: force an external sync to check for updated files.
MDL-47594 core_accesslib: removed three useless lines of code
MDL-47613 wiki: allow searching several words

Thanks to Sandeep B for suggested solution
MDL-46546 gradebook: Grade import gives error on bad csv upload.
MDL-47646 CURL redirect unit test: handle broken servers
Automatically generated installer lang files
MDL-46151 cachestore_memcache: now checks extension version for support
MDL-46235 Admin: Fix typos in mysql_compressed_rows.php cli script
MDL-46546 core_grades: Move error checking after csv upload.
MDL-38732 gradereport_grader: Handle simultaneous graders
MDL-46151 cachestore_memcache: set_many now uses set
Merge branch '46151-26' of git://github.com/samhemelryk/moodle into MOODLE_26_STABLE
Merge branch 'wip_MDL-46235_m26_innodbtext' of github.com:skodak/moodle into MOODLE_26_STABLE
MDL-46235 fix trailing whitespace
MDL-46235/MDL-46971 mysql_compress_rows: fix typo
Merge branch 'install_26_STABLE' of https://git.in.moodle.com/amosbot/moodle-install into MOODLE_26_STABLE
weekly release 2.6.5+