Harvester config / Save activation only when user click save status #657.
Harvester / OGC WxS / Thumbnails not create for WMS 1.3.0 #658.
Harvester config / History does not highlight when records were removed #659

* Fix history timestamp when records are removed
* Add history step when records are removed
* Clean last successful results when records are removed
* Improve button and timeline layout
Merge remote-tracking branch 'origin/stable-develop' into develop

Conflicts:
	web-ui/src/main/resources/catalog/locales/en-admin.json
	web-ui/src/main/resources/catalog/locales/fr-admin.json