re-added lib1 login page

fixes issue #28
fixed #60: error msg after returning to mytop5 via browser-back
fixed hint decoder layout (rm #94)
widened cache description editor window
red color for locked/hidden caches in search result list, see RM #125
fixed SQL syntax
Merge pull request #65 from Sampiero/master

fixed SQL Syntax
cache_logs.log_last_modified trigger improvement:

set it exactly to last_modified instead to NOW(), which can be a second ahead
Merge branch 'master' of https://github.com/OpencachingDeutschland/oc-server3
Merge branch 'master' into next