implemented check for possible discount with reserved instances
Merge remote branch 'vova/develop' into develop
added reserved instance modeling
merge
fix modeling
test1 done
test2 for reserved instances monitoring util done
fix ui
updated event classes
events for unreserved instances done
added monitoring of unused reserved_instances
fixed datasources
cleaning in branch
added tests
merge
removed "reservation" component
Merge branch 'reserved_instances' into develop
removed the rest of reservations
fixed test for reserved instances modeler
fixed test for buckets