Prevent never_cache to overwrite Last-Modified (fixes #72)
Move response content caching to decorator
Small optimization at reading cache : split keys
Show object type in Document export (fixes #36)
Prevent to use a cycle request/response to extract HTML attributes
Merge remote-tracking branch 'origin/fix_geojson_cache_test' into develop
Merge remote-tracking branch 'origin/split_cache_key' into develop
Merge remote-tracking branch 'origin/show_object_type' into develop

Conflicts:
	CHANGES
Switch to big icon in OpenDocument export