* Don't show apply button when creating new entries or groups (Fix#2191)
* Don't mark entry/group as dirty when first creating a new one (prevents unnecessary discard dialog on cancel)
* Properly enable/disable apply button when changes are made to entries and groups
* Don't show discard change warning when locking database unless their are actual changes made
NOTE: Extra pages in the group edit widget are not watched for changes yet. Requires a major refactor.
4b1258f585