Merge branch 'maint-1.1' into maint-1.2
- maint-1.1: installation: Invenio hosting of jQuery plugins global: silencing MySQL UTF-8 warnings for BLOBs installation: drop instance folder fix installation: pinned JSON-js Medialeement versions
- Note: amends few more _binary locations for new Invenio 1.2 queries.
Signed-off-by: Tibor Simko <tibor.simko@cern.ch>