Fix upload box CSS
Remove SearchEngineInterface::clearAllCache, keep last hour phrasea cache
Merge pull request #923 from romainneutron/upload-css

[3.8] Fix upload box CSS
Merge pull request #924 from romainneutron/phrasea-cache-cleaner

[3.8] Remove SearchEngineInterface::clearAllCache, keep last hour phrasea cache
Merge branch '3.8'

Conflicts:
	lib/Alchemy/Phrasea/SearchEngine/SphinxSearch/SphinxSearchEngine.php