Implemented configurable URLs to send notifications.
Added tests for configurable notification URL.
Adjusting version
Adjusting default strategy to replace, make strategy changeable from controller, and use layer level strategy.
Images merged during ingestion are reported as actuallyInserted instead of actuallyReplaced.
Browses are not merged between browse layers.
Prepend browse layer ID to coverage ID in order to allow same browse_identifiers in different browse layers.
Adding files overlooked in previous commit.
Correcting export command. Adjusting import tests.
Adjusting mapcache.xml template used for testing.
Adjusting mapcache tile db name in importing and testing.
Adding file overlooked in previous commit.
More adjustments of mapcache cache names in testing.
Merge branch 'branch-2-0'