OPAL-2454: Check number of datasources before showing "Copy Data" modal.
OPAL-2454: Allow to change sticky behaviour.
OPAL-2454: Adding more specific warning messages.
Changing text and trying some new colors...
Merge pull request #578 from emorency/working-stack

OPAL-2454: Check number of datasources before showing "Copy Data" modal.
Removing spaces between the action alert and table for index list
Merge pull request #579 from emorency/working-stack

Removing spaces between the action alert and table for index list
Setting titles for "Edit categories" and "Edit properties" to capitalized words.
Merge pull request #580 from emorency/working-stack

Setting titles for "Edit categories" and "Edit properties" to capitalize...
Add ErrorDto to exception mappers
Extract databaseConnectionFail method
Add ErrorDto to exception mappers
Finally fix OPAL-2323: Identifier database change throws an exception