cleanup server statistics page; remove unused .js and .css files; fix the sortable table; add new columns
remove unused import
fix: update digest only twice a day, not every minute of every 12th hour
Merge branch 'master' of https://github.com/olihamon/META-SHARE into various-improvements
add Unidecode library in order to make olihamon’s changes work
remove superfluous (re-)imports
Merge pull request #713 from cspurk/various-improvements

(1) improved sorting by resource name; (2) fix: update digest only twice a day; (3) various minor improvements
promote Tilde node to a Managed Node in the portal and add other nodes
remove obsolete “prototype” text from the portal page
Merge pull request #717 from cspurk/various-improvements

update the META-SHARE portal page
fix: don’t block forever in case of connection problems

We set a graceful default socket timeout of 30 seconds so that none of
our connections can block forever.
thread-safety bug fix: use a single lock instead of one per thread
add and activate preliminary versions of the CLARIN EULA templates
Merge pull request #718 from cspurk/various-improvements

(1) don’t block forever in case of connection problems; (2) thread-safety bug fix: use a single lock instead of one per thread; (3) add and activate preliminary versions of the CLARIN EULA templates
always cache loaded templates to speed up our single resource view

Whenever a template is changed, the server now has to be restarted for
the changes to take effect. Our single resource view now loads more than
ten times faster than before (at least on my local development machine
in `DEBUG` mode).
Merge pull request #719 from cspurk/various-improvements

always cache loaded templates to speed up our single resource view
small fix for href attribute on View on site
Added more META-SHARE nodes in the portal page.
Added more META-SHARE nodes in the portal page.
Fixed images alignments.